diff --git a/internal/ai/service.go b/internal/ai/service.go
index 5686437..6d3e5d5 100644
--- a/internal/ai/service.go
+++ b/internal/ai/service.go
@@ -262,6 +262,9 @@ func (s *Service) Enabled() bool {
 
 // ReloadLLMProvider reloads a specific LLM provider configuration
 func (s *Service) ReloadLLMProvider(config interface{}) error {
+	if s == nil {
+		return nil
+	}
 	if !s.enabled || s.LLMState == nil {
 		return nil
 	}
@@ -274,6 +277,9 @@ func (s *Service) ReloadLLMProvider(config interface{}) error {
 
 // AddLLMProvider adds a new LLM provider
 func (s *Service) AddLLMProvider(config interface{}) error {
+	if s == nil {
+		return nil
+	}
 	if !s.enabled || s.LLMState == nil {
 		return nil
 	}
@@ -286,6 +292,9 @@ func (s *Service) AddLLMProvider(config interface{}) error {
 
 // RemoveLLMProvider removes an LLM provider
 func (s *Service) RemoveLLMProvider(name string) error {
+	if s == nil {
+		return nil
+	}
 	if !s.enabled || s.LLMState == nil {
 		return nil
 	}
diff --git a/internal/llmadmin/admin_llm_routes.go b/internal/llmadmin/admin_llm_routes.go
index 54eae9f..ab0bf01 100644
--- a/internal/llmadmin/admin_llm_routes.go
+++ b/internal/llmadmin/admin_llm_routes.go
@@ -298,25 +298,30 @@ func handleCreateLLMProvider(store *storepkg.Store, aiService LLMProviderReloade
 		}
 
 		// Reload AI service with new provider
-		if aiService != nil {
-			providerConfig := map[string]interface{}{
-				"Name":                record.Name,
-				"Active":              record.Active,
-				"APIKey":              record.APIKey,
-				"BaseURL":             record.BaseURL,
-				"Model":               record.Model,
-				"Timeout":             record.Timeout,
-				"ContextWindowTokens": record.ContextWindowTokens,
-			}
-			if err := aiService.AddLLMProvider(providerConfig); err != nil {
-				// Log warning but don't fail the request - database is already updated
-				c.JSON(http.StatusOK, gin.H{
-					"status":  "ok",
-					"item":    llmProviderDTO(*record),
-					"warning": "provider created but failed to reload AI service: " + err.Error(),
-				})
-				return
-			}
+		if aiService == nil {
+			c.JSON(http.StatusOK, gin.H{
+				"status":  "ok",
+				"item":    llmProviderDTO(*record),
+				"warning": "AI 服务未运行，配置已保存但需重启服务后生效",
+			})
+			return
+		}
+		providerConfig := map[string]interface{}{
+			"Name":                record.Name,
+			"Active":              record.Active,
+			"APIKey":              record.APIKey,
+			"BaseURL":             record.BaseURL,
+			"Model":               record.Model,
+			"Timeout":             record.Timeout,
+			"ContextWindowTokens": record.ContextWindowTokens,
+		}
+		if err := aiService.AddLLMProvider(providerConfig); err != nil {
+			c.JSON(http.StatusOK, gin.H{
+				"status":  "ok",
+				"item":    llmProviderDTO(*record),
+				"warning": "provider created but failed to reload AI service: " + err.Error(),
+			})
+			return
 		}
 
 		c.JSON(http.StatusOK, gin.H{"status": "ok", "item": llmProviderDTO(*record)})
@@ -385,25 +390,30 @@ func handleUpdateLLMProvider(store *storepkg.Store, aiService LLMProviderReloade
 		}
 
 		// Reload AI service with updated provider
-		if aiService != nil {
-			providerConfig := map[string]interface{}{
-				"Name":                record.Name,
-				"Active":              record.Active,
-				"APIKey":              record.APIKey,
-				"BaseURL":             record.BaseURL,
-				"Model":               record.Model,
-				"Timeout":             record.Timeout,
-				"ContextWindowTokens": record.ContextWindowTokens,
-			}
-			if err := aiService.ReloadLLMProvider(providerConfig); err != nil {
-				// Log warning but don't fail the request - database is already updated
-				c.JSON(http.StatusOK, gin.H{
-					"status":  "ok",
-					"item":    llmProviderDTO(*record),
-					"warning": "provider updated but failed to reload AI service: " + err.Error(),
-				})
-				return
-			}
+		if aiService == nil {
+			c.JSON(http.StatusOK, gin.H{
+				"status":  "ok",
+				"item":    llmProviderDTO(*record),
+				"warning": "AI 服务未运行，配置已保存但需重启服务后生效",
+			})
+			return
+		}
+		providerConfig := map[string]interface{}{
+			"Name":                record.Name,
+			"Active":              record.Active,
+			"APIKey":              record.APIKey,
+			"BaseURL":             record.BaseURL,
+			"Model":               record.Model,
+			"Timeout":             record.Timeout,
+			"ContextWindowTokens": record.ContextWindowTokens,
+		}
+		if err := aiService.ReloadLLMProvider(providerConfig); err != nil {
+			c.JSON(http.StatusOK, gin.H{
+				"status":  "ok",
+				"item":    llmProviderDTO(*record),
+				"warning": "provider updated but failed to reload AI service: " + err.Error(),
+			})
+			return
 		}
 
 		c.JSON(http.StatusOK, gin.H{"status": "ok", "item": llmProviderDTO(*record)})
@@ -424,15 +434,19 @@ func handleDeleteLLMProvider(store *storepkg.Store, aiService LLMProviderReloade
 		}
 
 		// Remove provider from AI service
-		if aiService != nil {
-			if err := aiService.RemoveLLMProvider(name); err != nil {
-				// Log warning but don't fail the request - database is already updated
-				c.JSON(http.StatusOK, gin.H{
-					"status":  "ok",
-					"warning": "provider deleted but failed to reload AI service: " + err.Error(),
-				})
-				return
-			}
+		if aiService == nil {
+			c.JSON(http.StatusOK, gin.H{
+				"status":  "ok",
+				"warning": "AI 服务未运行，配置已删除但需重启服务后生效",
+			})
+			return
+		}
+		if err := aiService.RemoveLLMProvider(name); err != nil {
+			c.JSON(http.StatusOK, gin.H{
+				"status":  "ok",
+				"warning": "provider deleted but failed to reload AI service: " + err.Error(),
+			})
+			return
 		}
 
 		c.JSON(http.StatusOK, gin.H{"status": "ok"})
diff --git a/main.go b/main.go
index 6d1eea5..bfd4111 100644
--- a/main.go
+++ b/main.go
@@ -475,7 +475,11 @@ func run(cfg *configpkg.Config) error {
 			return err
 		}
 		mqttStatus := webpkg.MQTTRuntimeStatus{Server: server, Address: mqttAddr, TLS: cfg.MQTT.TLS.Enabled, Stats: messageStats, ClientStats: clientStats, DBQueue: dbQueue, DedupQueue: mqttHook.dedupQueue}
-		handler := webpkg.NewRouter(cfg.Web, cfg.ConsoleLog.Web, store, sessions, mqttStatus, blocking, forwardManager, settings, botSender, aiService)
+		var llmReloader webpkg.LLMProviderReloader
+		if aiService != nil {
+			llmReloader = aiService
+		}
+		handler := webpkg.NewRouter(cfg.Web, cfg.ConsoleLog.Web, store, sessions, mqttStatus, blocking, forwardManager, settings, botSender, llmReloader)
 		webAddresses := []string{}
 		if cfg.Web.PortEnabled {
 			httpServer := &http.Server{
diff --git a/meshmap_frontend/src/api.ts b/meshmap_frontend/src/api.ts
index 6ec38ba..20067b8 100644
--- a/meshmap_frontend/src/api.ts
+++ b/meshmap_frontend/src/api.ts
@@ -515,8 +515,8 @@ export function updateLLMProvider(name: string, payload: Partial<LLMProviderPayl
   return putJSON<LLMProviderResponse>(`/api/admin/llm/providers/${encodeURIComponent(name)}`, payload)
 }
 
-export function deleteLLMProvider(name: string): Promise<{ status: string }> {
-  return deleteJSON<{ status: string }>(`/api/admin/llm/providers/${encodeURIComponent(name)}`)
+export function deleteLLMProvider(name: string): Promise<{ status: string; warning?: string }> {
+  return deleteJSON<{ status: string; warning?: string }>(`/api/admin/llm/providers/${encodeURIComponent(name)}`)
 }
 
 // LLM Tool Router API
diff --git a/meshmap_frontend/src/components/AdminLLMApi.vue b/meshmap_frontend/src/components/AdminLLMApi.vue
index 446fc45..c19bff2 100644
--- a/meshmap_frontend/src/components/AdminLLMApi.vue
+++ b/meshmap_frontend/src/components/AdminLLMApi.vue
@@ -17,6 +17,7 @@ import type { LLMPlatformRouter, LLMTopicConfig, LLMProvider, LLMPrimaryConfig }
 const loading = ref(false)
 const error = ref('')
 const success = ref('')
+const showWarning = ref(false)
 
 // LLM Provider 相关
 const providers = ref<LLMProvider[]>([])
@@ -169,12 +170,18 @@ async function saveProvider() {
   }
 
   try {
+    let response: any
     if (isCreatingProvider.value) {
-      await createLLMProvider(providerForm.value)
-      success.value = '创建成功'
+      response = await createLLMProvider(providerForm.value)
     } else if (editingProvider.value) {
-      await updateLLMProvider(editingProvider.value.name, providerForm.value)
-      success.value = '更新成功'
+      response = await updateLLMProvider(editingProvider.value.name, providerForm.value)
+    }
+    if (response.warning) {
+      success.value = response.warning
+      showWarning.value = true
+    } else {
+      success.value = isCreatingProvider.value ? '创建成功' : '更新成功'
+      showWarning.value = false
     }
     clearSuccess()
     closeProviderForm()
@@ -189,8 +196,14 @@ async function confirmDeleteProvider(name: string) {
     return
   }
   try {
-    await deleteLLMProvider(name)
-    success.value = '删除成功'
+    const response = await deleteLLMProvider(name)
+    if (response.warning) {
+      success.value = response.warning
+      showWarning.value = true
+    } else {
+      success.value = '删除成功'
+      showWarning.value = false
+    }
     clearSuccess()
     await loadProviders()
   } catch (err) {
@@ -299,7 +312,7 @@ onMounted(() => {
     <h2>LLM API 配置管理</h2>
 
     <p v-if="error" class="error">{{ error }}</p>
-    <p v-if="success" class="success">{{ success }}</p>
+    <p v-if="success" :class="showWarning ? 'warning' : 'success'">{{ success }}</p>
 
     <!-- LLM Provider 列表 -->
     <div class="admin-section">
@@ -973,6 +986,19 @@ onMounted(() => {
   gap: 0.5rem;
 }
 
+.warning {
+  color: #92400e;
+  padding: 1rem 1.25rem;
+  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
+  border-radius: 10px;
+  margin-bottom: 1.25rem;
+  border: 1px solid #fcd34d;
+  font-weight: 500;
+  display: flex;
+  align-items: center;
+  gap: 0.5rem;
+}
+
 .admin-loading {
   padding: 3rem;
   text-align: center;
diff --git a/meshmap_frontend/src/types.ts b/meshmap_frontend/src/types.ts
index 4af78b1..6e9cdab 100644
--- a/meshmap_frontend/src/types.ts
+++ b/meshmap_frontend/src/types.ts
@@ -644,6 +644,7 @@ export interface LLMProviderPayload {
 
 export interface LLMProviderResponse {
   item: LLMProvider
+  warning?: string
 }
 
 // LLM Tool Router 相关类型