diff --git a/web/app/components/app/log/list.tsx b/web/app/components/app/log/list.tsx
index 29e2bfde99..8937da68b6 100644
--- a/web/app/components/app/log/list.tsx
+++ b/web/app/components/app/log/list.tsx
@@ -96,11 +96,15 @@ const getFormattedChatList = (messages: ChatMessage[]) => {
       message_files: item.message_files?.filter((file: any) => file.belongs_to === 'assistant') || [],
       log: [
         ...item.message,
-        {
-          role: 'assistant',
-          text: item.answer,
-          files: item.message_files?.filter((file: any) => file.belongs_to === 'assistant') || [],
-        },
+        ...(item.message[item.message.length - 1].role !== 'assistant'
+          ? [
+            {
+              role: 'assistant',
+              text: item.answer,
+              files: item.message_files?.filter((file: any) => file.belongs_to === 'assistant') || [],
+            },
+          ]
+          : []),
       ],
       workflow_run_id: item.workflow_run_id,
       more: {
diff --git a/web/app/components/app/text-generate/item/index.tsx b/web/app/components/app/text-generate/item/index.tsx
index 50f05b8f2f..0db3c301c7 100644
--- a/web/app/components/app/text-generate/item/index.tsx
+++ b/web/app/components/app/text-generate/item/index.tsx
@@ -200,11 +200,15 @@ const GenerationItem: FC<IGenerationItemProps> = ({
       ...data,
       log: [
         ...data.message,
-        {
-          role: 'assistant',
-          text: data.answer,
-          files: data.message_files?.filter((file: any) => file.belongs_to === 'assistant') || [],
-        },
+        ...(data.message[data.message.length - 1].role !== 'assistant'
+          ? [
+            {
+              role: 'assistant',
+              text: data.answer,
+              files: data.message_files?.filter((file: any) => file.belongs_to === 'assistant') || [],
+            },
+          ]
+          : []),
       ],
     }
     setCurrentLogItem(logItem)
diff --git a/web/app/components/base/chat/chat/hooks.ts b/web/app/components/base/chat/chat/hooks.ts
index 6242105e85..8aeaf1463a 100644
--- a/web/app/components/base/chat/chat/hooks.ts
+++ b/web/app/components/base/chat/chat/hooks.ts
@@ -324,11 +324,15 @@ export const useChat = (
                   ...draft[index],
                   log: [
                     ...newResponseItem.message,
-                    {
-                      role: 'assistant',
-                      text: newResponseItem.answer,
-                      files: newResponseItem.message_files?.filter((file: any) => file.belongs_to === 'assistant') || [],
-                    },
+                    ...(newResponseItem.message[newResponseItem.message.length - 1].role !== 'assistant'
+                      ? [
+                        {
+                          role: 'assistant',
+                          text: newResponseItem.answer,
+                          files: newResponseItem.message_files?.filter((file: any) => file.belongs_to === 'assistant') || [],
+                        },
+                      ]
+                      : []),
                   ],
                   more: {
                     time: dayjs.unix(newResponseItem.created_at).format('hh:mm A'),