diff --git a/frontend/src/components/Step2EnvSetup.vue b/frontend/src/components/Step2EnvSetup.vue
index 0d84a6f..a27ba34 100644
--- a/frontend/src/components/Step2EnvSetup.vue
+++ b/frontend/src/components/Step2EnvSetup.vue
@@ -683,7 +683,7 @@ watch(currentStage, (newStage) => {
     phase.value = 2
     // 进入配置生成阶段，开始轮询配置
     if (!configTimer) {
-      addLog('开始生成双平台模拟配置...')
+      addLog(t('log.startGeneratingConfig'))
       startConfigPolling()
     }
   } else if (newStage === '准备模拟脚本' || newStage === 'copying_scripts') {
@@ -748,10 +748,10 @@ const handleStartSimulation = () => {
   if (useCustomRounds.value) {
     // 用户自定义轮数，传递 max_rounds 参数
     params.maxRounds = customMaxRounds.value
-    addLog(`开始模拟，自定义轮数: ${customMaxRounds.value} 轮`)
+    addLog(t('log.startSimCustomRounds', { rounds: customMaxRounds.value }))
   } else {
     // 用户选择保持自动生成的轮数，不传递 max_rounds 参数
-    addLog(`开始模拟，使用自动配置轮数: ${autoGeneratedRounds.value} 轮`)
+    addLog(t('log.startSimAutoRounds', { rounds: autoGeneratedRounds.value }))
   }
   
   emit('next-step', params)
@@ -771,15 +771,15 @@ const selectProfile = (profile) => {
 // 自动开始准备模拟
 const startPrepareSimulation = async () => {
   if (!props.simulationId) {
-    addLog('错误：缺少 simulationId')
+    addLog(t('log.errorMissingSimId'))
     emit('update-status', 'error')
     return
   }
   
   // 标记第一步完成，开始第二步
   phase.value = 1
-  addLog(`模拟实例已创建: ${props.simulationId}`)
-  addLog('正在准备模拟环境...')
+  addLog(t('log.simInstanceCreated', { id: props.simulationId }))
+  addLog(t('log.preparingSimEnv'))
   emit('update-status', 'processing')
   
   try {
@@ -791,35 +791,35 @@ const startPrepareSimulation = async () => {
     
     if (res.success && res.data) {
       if (res.data.already_prepared) {
-        addLog('检测到已有完成的准备工作，直接使用')
+        addLog(t('log.detectedExistingPrep'))
         await loadPreparedData()
         return
       }
       
       taskId.value = res.data.task_id
-      addLog(`准备任务已启动`)
-      addLog(`  └─ Task ID: ${res.data.task_id}`)
+      addLog(t('log.prepareTaskStarted'))
+      addLog(t('log.prepareTaskId', { taskId: res.data.task_id }))
       
       // 立即设置预期Agent总数（从prepare接口返回值获取）
       if (res.data.expected_entities_count) {
         expectedTotal.value = res.data.expected_entities_count
-        addLog(`从Zep图谱读取到 ${res.data.expected_entities_count} 个实体`)
+        addLog(t('log.zepEntitiesFound', { count: res.data.expected_entities_count }))
         if (res.data.entity_types && res.data.entity_types.length > 0) {
-          addLog(`  └─ 实体类型: ${res.data.entity_types.join(', ')}`)
+          addLog(t('log.entityTypes', { types: res.data.entity_types.join(', ') }))
         }
       }
       
-      addLog('开始轮询准备进度...')
+      addLog(t('log.startPollingProgress'))
       // 开始轮询进度
       startPolling()
       // 开始实时获取 Profiles
       startProfilesPolling()
     } else {
-      addLog(`准备失败: ${res.error || '未知错误'}`)
+      addLog(t('log.prepareFailed', { error: res.error || t('common.unknownError') }))
       emit('update-status', 'error')
     }
   } catch (err) {
-    addLog(`准备异常: ${err.message}`)
+    addLog(t('log.prepareException', { error: err.message }))
     emit('update-status', 'error')
   }
 }
@@ -893,12 +893,12 @@ const pollPrepareStatus = async () => {
       
       // 检查是否完成
       if (data.status === 'completed' || data.status === 'ready' || data.already_prepared) {
-        addLog('✓ 准备工作已完成')
+        addLog(t('log.prepareComplete'))
         stopPolling()
         stopProfilesPolling()
         await loadPreparedData()
       } else if (data.status === 'failed') {
-        addLog(`✗ 准备失败: ${data.error || '未知错误'}`)
+        addLog(t('log.prepareFailedWithError', { error: data.error || t('common.unknownError') }))
         stopPolling()
         stopProfilesPolling()
       }
@@ -937,13 +937,13 @@ const fetchProfilesRealtime = async () => {
         const latestProfile = profiles.value[currentCount - 1]
         const profileName = latestProfile?.name || latestProfile?.username || `Agent_${currentCount}`
         if (currentCount === 1) {
-          addLog(`开始生成Agent人设...`)
+          addLog(t('log.startGeneratingAgentProfiles'))
         }
-        addLog(`→ Agent人设 ${currentCount}/${total}: ${profileName} (${latestProfile?.profession || '未知职业'})`)
-        
+        addLog(t('log.agentProfile', { current: currentCount, total: total, name: profileName, profession: latestProfile?.profession || t('step2.unknownProfession') }))
+
         // 如果全部生成完成
         if (expectedTotal.value && currentCount >= expectedTotal.value) {
-          addLog(`✓ 全部 ${currentCount} 个Agent人设生成完成`)
+          addLog(t('log.allProfilesComplete', { count: currentCount }))
         }
       }
     }
@@ -977,41 +977,41 @@ const fetchConfigRealtime = async () => {
       if (data.generation_stage && data.generation_stage !== lastLoggedConfigStage) {
         lastLoggedConfigStage = data.generation_stage
         if (data.generation_stage === 'generating_profiles') {
-          addLog('正在生成Agent人设配置...')
+          addLog(t('log.generatingAgentProfileConfig'))
         } else if (data.generation_stage === 'generating_config') {
-          addLog('正在调用LLM生成模拟配置参数...')
+          addLog(t('log.generatingLLMConfig'))
         }
       }
       
       // 如果配置已生成
       if (data.config_generated && data.config) {
         simulationConfig.value = data.config
-        addLog('✓ 模拟配置生成完成')
-        
+        addLog(t('log.configComplete'))
+
         // 显示详细配置摘要
         if (data.summary) {
-          addLog(`  ├─ Agent数量: ${data.summary.total_agents}个`)
-          addLog(`  ├─ 模拟时长: ${data.summary.simulation_hours}小时`)
-          addLog(`  ├─ 初始帖子: ${data.summary.initial_posts_count}条`)
-          addLog(`  ├─ 热点话题: ${data.summary.hot_topics_count}个`)
-          addLog(`  └─ 平台配置: Twitter ${data.summary.has_twitter_config ? '✓' : '✗'}, Reddit ${data.summary.has_reddit_config ? '✓' : '✗'}`)
+          addLog(t('log.configSummaryAgents', { count: data.summary.total_agents }))
+          addLog(t('log.configSummaryHours', { hours: data.summary.simulation_hours }))
+          addLog(t('log.configSummaryPosts', { count: data.summary.initial_posts_count }))
+          addLog(t('log.configSummaryTopics', { count: data.summary.hot_topics_count }))
+          addLog(t('log.configSummaryPlatforms', { twitter: data.summary.has_twitter_config ? '✓' : '✗', reddit: data.summary.has_reddit_config ? '✓' : '✗' }))
         }
         
         // 显示时间配置详情
         if (data.config.time_config) {
           const tc = data.config.time_config
-          addLog(`时间配置: 每轮${tc.minutes_per_round}分钟, 共${Math.floor((tc.total_simulation_hours * 60) / tc.minutes_per_round)}轮`)
+          addLog(t('log.timeConfigDetail', { minutes: tc.minutes_per_round, rounds: Math.floor((tc.total_simulation_hours * 60) / tc.minutes_per_round) }))
         }
         
         // 显示事件配置
         if (data.config.event_config?.narrative_direction) {
           const narrative = data.config.event_config.narrative_direction
-          addLog(`叙事方向: ${narrative.length > 50 ? narrative.substring(0, 50) + '...' : narrative}`)
+          addLog(t('log.narrativeDirection', { direction: narrative.length > 50 ? narrative.substring(0, 50) + '...' : narrative }))
         }
         
         stopConfigPolling()
         phase.value = 4
-        addLog('✓ 环境搭建完成，可以开始模拟')
+        addLog(t('log.envSetupComplete'))
         emit('update-status', 'completed')
       }
     }
@@ -1022,11 +1022,11 @@ const fetchConfigRealtime = async () => {
 
 const loadPreparedData = async () => {
   phase.value = 2
-  addLog('正在加载已有配置数据...')
+  addLog(t('log.loadingExistingConfig'))
 
   // 最后获取一次 Profiles
   await fetchProfilesRealtime()
-  addLog(`已加载 ${profiles.value.length} 个Agent人设`)
+  addLog(t('log.loadedAgentProfiles', { count: profiles.value.length }))
 
   // 获取配置（使用实时接口）
   try {
@@ -1034,26 +1034,26 @@ const loadPreparedData = async () => {
     if (res.success && res.data) {
       if (res.data.config_generated && res.data.config) {
         simulationConfig.value = res.data.config
-        addLog('✓ 模拟配置加载成功')
-        
+        addLog(t('log.configLoadSuccess'))
+
         // 显示详细配置摘要
         if (res.data.summary) {
-          addLog(`  ├─ Agent数量: ${res.data.summary.total_agents}个`)
-          addLog(`  ├─ 模拟时长: ${res.data.summary.simulation_hours}小时`)
-          addLog(`  └─ 初始帖子: ${res.data.summary.initial_posts_count}条`)
+          addLog(t('log.configSummaryAgents', { count: res.data.summary.total_agents }))
+          addLog(t('log.configSummaryHours', { hours: res.data.summary.simulation_hours }))
+          addLog(t('log.configSummaryPostsAlt', { count: res.data.summary.initial_posts_count }))
         }
-        
-        addLog('✓ 环境搭建完成，可以开始模拟')
+
+        addLog(t('log.envSetupComplete'))
         phase.value = 4
         emit('update-status', 'completed')
       } else {
         // 配置尚未生成，开始轮询
-        addLog('配置生成中，开始轮询等待...')
+        addLog(t('log.configGenerating'))
         startConfigPolling()
       }
     }
   } catch (err) {
-    addLog(`加载配置失败: ${err.message}`)
+    addLog(t('log.loadConfigFailed', { error: err.message }))
     emit('update-status', 'error')
   }
 }
@@ -1071,7 +1071,7 @@ watch(() => props.systemLogs?.length, () => {
 onMounted(() => {
   // 自动开始准备流程
   if (props.simulationId) {
-    addLog('Step2 环境搭建初始化')
+    addLog(t('log.step2Init'))
     startPrepareSimulation()
   }
 })
diff --git a/frontend/src/views/SimulationRunView.vue b/frontend/src/views/SimulationRunView.vue
index 58f1b9d..c675d87 100644
--- a/frontend/src/views/SimulationRunView.vue
+++ b/frontend/src/views/SimulationRunView.vue
@@ -76,7 +76,9 @@ import Step3Simulation from '../components/Step3Simulation.vue'
 import { getProject, getGraphData } from '../api/graph'
 import { getSimulation, getSimulationConfig, stopSimulation, closeSimulationEnv, getEnvStatus } from '../api/simulation'
 import LanguageSwitcher from '../components/LanguageSwitcher.vue'
+import { useI18n } from 'vue-i18n'
 
+const { t } = useI18n()
 const route = useRoute()
 const router = useRouter()
 
@@ -149,7 +151,7 @@ const toggleMaximize = (target) => {
 
 const handleGoBack = async () => {
   // 在返回 Step 2 之前，先关闭正在运行的模拟
-  addLog('准备返回 Step 2，正在关闭模拟...')
+  addLog(t('log.preparingGoBack'))
   
   // 停止轮询
   stopGraphRefresh()
@@ -159,36 +161,36 @@ const handleGoBack = async () => {
     const envStatusRes = await getEnvStatus({ simulation_id: currentSimulationId.value })
     
     if (envStatusRes.success && envStatusRes.data?.env_alive) {
-      addLog('正在关闭模拟环境...')
+      addLog(t('log.closingSimEnv'))
       try {
         await closeSimulationEnv({ 
           simulation_id: currentSimulationId.value,
           timeout: 10
         })
-        addLog('✓ 模拟环境已关闭')
+        addLog(t('log.simEnvClosed'))
       } catch (closeErr) {
-        addLog(`关闭模拟环境失败，尝试强制停止...`)
+        addLog(t('log.closeSimEnvFailed'))
         try {
           await stopSimulation({ simulation_id: currentSimulationId.value })
-          addLog('✓ 模拟已强制停止')
+          addLog(t('log.simForceStopSuccess'))
         } catch (stopErr) {
-          addLog(`强制停止失败: ${stopErr.message}`)
+          addLog(t('log.forceStopFailed', { error: stopErr.message }))
         }
       }
     } else {
       // 环境未运行，检查是否需要停止进程
       if (isSimulating.value) {
-        addLog('正在停止模拟进程...')
+        addLog(t('log.stoppingSimProcess'))
         try {
           await stopSimulation({ simulation_id: currentSimulationId.value })
-          addLog('✓ 模拟已停止')
+          addLog(t('log.simStopped'))
         } catch (err) {
-          addLog(`停止模拟失败: ${err.message}`)
+          addLog(t('log.stopSimFailed', { error: err.message }))
         }
       }
     }
   } catch (err) {
-    addLog(`检查模拟状态失败: ${err.message}`)
+    addLog(t('log.checkStatusFailed', { error: err.message }))
   }
   
   // 返回到 Step 2 (环境搭建)
@@ -198,13 +200,13 @@ const handleGoBack = async () => {
 const handleNextStep = () => {
   // Step3Simulation 组件会直接处理报告生成和路由跳转
   // 这个方法仅作为备用
-  addLog('进入 Step 4: 报告生成')
+  addLog(t('log.enterStep4'))
 }
 
 // --- Data Logic ---
 const loadSimulationData = async () => {
   try {
-    addLog(`加载模拟数据: ${currentSimulationId.value}`)
+    addLog(t('log.loadingSimData', { id: currentSimulationId.value }))
     
     // 获取 simulation 信息
     const simRes = await getSimulation(currentSimulationId.value)
@@ -216,10 +218,10 @@ const loadSimulationData = async () => {
         const configRes = await getSimulationConfig(currentSimulationId.value)
         if (configRes.success && configRes.data?.time_config?.minutes_per_round) {
           minutesPerRound.value = configRes.data.time_config.minutes_per_round
-          addLog(`时间配置: 每轮 ${minutesPerRound.value} 分钟`)
+          addLog(t('log.timeConfig', { minutes: minutesPerRound.value }))
         }
       } catch (configErr) {
-        addLog(`获取时间配置失败，使用默认值: ${minutesPerRound.value}分钟/轮`)
+        addLog(t('log.timeConfigFetchFailed', { minutes: minutesPerRound.value }))
       }
       
       // 获取 project 信息
@@ -227,7 +229,7 @@ const loadSimulationData = async () => {
         const projRes = await getProject(simData.project_id)
         if (projRes.success && projRes.data) {
           projectData.value = projRes.data
-          addLog(`项目加载成功: ${projRes.data.project_id}`)
+          addLog(t('log.projectLoadSuccess', { id: projRes.data.project_id }))
           
           // 获取 graph 数据
           if (projRes.data.graph_id) {
@@ -236,10 +238,10 @@ const loadSimulationData = async () => {
         }
       }
     } else {
-      addLog(`加载模拟数据失败: ${simRes.error || '未知错误'}`)
+      addLog(t('log.loadSimDataFailed', { error: simRes.error || t('common.unknownError') }))
     }
   } catch (err) {
-    addLog(`加载异常: ${err.message}`)
+    addLog(t('log.loadException', { error: err.message }))
   }
 }
 
@@ -255,11 +257,11 @@ const loadGraph = async (graphId) => {
     if (res.success) {
       graphData.value = res.data
       if (!isSimulating.value) {
-        addLog('图谱数据加载成功')
+        addLog(t('log.graphDataLoadSuccess'))
       }
     }
   } catch (err) {
-    addLog(`图谱加载失败: ${err.message}`)
+    addLog(t('log.graphLoadFailed', { error: err.message }))
   } finally {
     graphLoading.value = false
   }
@@ -276,7 +278,7 @@ let graphRefreshTimer = null
 
 const startGraphRefresh = () => {
   if (graphRefreshTimer) return
-  addLog('开启图谱实时刷新 (30s)')
+  addLog(t('log.graphRealtimeRefreshStart'))
   // 立即刷新一次，然后每30秒刷新
   graphRefreshTimer = setInterval(refreshGraph, 30000)
 }
@@ -285,7 +287,7 @@ const stopGraphRefresh = () => {
   if (graphRefreshTimer) {
     clearInterval(graphRefreshTimer)
     graphRefreshTimer = null
-    addLog('停止图谱实时刷新')
+    addLog(t('log.graphRealtimeRefreshStop'))
   }
 }
 
@@ -298,11 +300,11 @@ watch(isSimulating, (newValue) => {
 }, { immediate: true })
 
 onMounted(() => {
-  addLog('SimulationRunView 初始化')
+  addLog(t('log.simRunViewInit'))
   
   // 记录 maxRounds 配置（值已在初始化时从 query 参数获取）
   if (maxRounds.value) {
-    addLog(`自定义模拟轮数: ${maxRounds.value}`)
+    addLog(t('log.customRounds', { rounds: maxRounds.value }))
   }
   
   loadSimulationData()
diff --git a/frontend/src/views/SimulationView.vue b/frontend/src/views/SimulationView.vue
index e7dcc9f..f3e1c18 100644
--- a/frontend/src/views/SimulationView.vue
+++ b/frontend/src/views/SimulationView.vue
@@ -73,7 +73,9 @@ import Step2EnvSetup from '../components/Step2EnvSetup.vue'
 import { getProject, getGraphData } from '../api/graph'
 import { getSimulation, stopSimulation, getEnvStatus, closeSimulationEnv } from '../api/simulation'
 import LanguageSwitcher from '../components/LanguageSwitcher.vue'
+import { useI18n } from 'vue-i18n'
 
+const { t } = useI18n()
 const route = useRoute()
 const router = useRouter()
 
@@ -149,13 +151,13 @@ const handleGoBack = () => {
 }
 
 const handleNextStep = (params = {}) => {
-  addLog('进入 Step 3: 开始模拟')
-  
+  addLog(t('log.enterStep3'))
+
   // 记录模拟轮数配置
   if (params.maxRounds) {
-    addLog(`自定义模拟轮数: ${params.maxRounds} 轮`)
+    addLog(t('log.customRoundsConfig', { rounds: params.maxRounds }))
   } else {
-    addLog('使用自动配置的模拟轮数')
+    addLog(t('log.useAutoRounds'))
   }
   
   // 构建路由参数
@@ -187,7 +189,7 @@ const checkAndStopRunningSimulation = async () => {
     const envStatusRes = await getEnvStatus({ simulation_id: currentSimulationId.value })
     
     if (envStatusRes.success && envStatusRes.data?.env_alive) {
-      addLog('检测到模拟环境正在运行，正在关闭...')
+      addLog(t('log.detectedSimEnvRunning'))
       
       // 尝试优雅关闭模拟环境
       try {
@@ -197,14 +199,14 @@ const checkAndStopRunningSimulation = async () => {
         })
         
         if (closeRes.success) {
-          addLog('✓ 模拟环境已关闭')
+          addLog(t('log.simEnvClosed'))
         } else {
-          addLog(`关闭模拟环境失败: ${closeRes.error || '未知错误'}`)
+          addLog(t('log.closeSimEnvFailedWithError', { error: closeRes.error || t('common.unknownError') }))
           // 如果优雅关闭失败，尝试强制停止
           await forceStopSimulation()
         }
       } catch (closeErr) {
-        addLog(`关闭模拟环境异常: ${closeErr.message}`)
+        addLog(t('log.closeSimEnvException', { error: closeErr.message }))
         // 如果优雅关闭异常，尝试强制停止
         await forceStopSimulation()
       }
@@ -212,7 +214,7 @@ const checkAndStopRunningSimulation = async () => {
       // 环境未运行，但可能进程还在，检查模拟状态
       const simRes = await getSimulation(currentSimulationId.value)
       if (simRes.success && simRes.data?.status === 'running') {
-        addLog('检测到模拟状态为运行中，正在停止...')
+        addLog(t('log.detectedSimRunning'))
         await forceStopSimulation()
       }
     }
@@ -229,30 +231,30 @@ const forceStopSimulation = async () => {
   try {
     const stopRes = await stopSimulation({ simulation_id: currentSimulationId.value })
     if (stopRes.success) {
-      addLog('✓ 模拟已强制停止')
+      addLog(t('log.simForceStopSuccess'))
     } else {
-      addLog(`强制停止模拟失败: ${stopRes.error || '未知错误'}`)
+      addLog(t('log.forceStopSimFailed', { error: stopRes.error || t('common.unknownError') }))
     }
   } catch (err) {
-    addLog(`强制停止模拟异常: ${err.message}`)
+    addLog(t('log.forceStopSimException', { error: err.message }))
   }
 }
 
 const loadSimulationData = async () => {
   try {
-    addLog(`加载模拟数据: ${currentSimulationId.value}`)
-    
+    addLog(t('log.loadingSimData', { id: currentSimulationId.value }))
+
     // 获取 simulation 信息
     const simRes = await getSimulation(currentSimulationId.value)
     if (simRes.success && simRes.data) {
       const simData = simRes.data
-      
+
       // 获取 project 信息
       if (simData.project_id) {
         const projRes = await getProject(simData.project_id)
         if (projRes.success && projRes.data) {
           projectData.value = projRes.data
-          addLog(`项目加载成功: ${projRes.data.project_id}`)
+          addLog(t('log.projectLoadSuccess', { id: projRes.data.project_id }))
           
           // 获取 graph 数据
           if (projRes.data.graph_id) {
@@ -261,10 +263,10 @@ const loadSimulationData = async () => {
         }
       }
     } else {
-      addLog(`加载模拟数据失败: ${simRes.error || '未知错误'}`)
+      addLog(t('log.loadSimDataFailed', { error: simRes.error || t('common.unknownError') }))
     }
   } catch (err) {
-    addLog(`加载异常: ${err.message}`)
+    addLog(t('log.loadException', { error: err.message }))
   }
 }
 
@@ -274,10 +276,10 @@ const loadGraph = async (graphId) => {
     const res = await getGraphData(graphId)
     if (res.success) {
       graphData.value = res.data
-      addLog('图谱数据加载成功')
+      addLog(t('log.graphDataLoadSuccess'))
     }
   } catch (err) {
-    addLog(`图谱加载失败: ${err.message}`)
+    addLog(t('log.graphLoadFailed', { error: err.message }))
   } finally {
     graphLoading.value = false
   }
@@ -290,7 +292,7 @@ const refreshGraph = () => {
 }
 
 onMounted(async () => {
-  addLog('SimulationView 初始化')
+  addLog(t('log.simViewInit'))
   
   // 检查并关闭正在运行的模拟（用户从 Step 3 返回时）
   await checkAndStopRunningSimulation()