diff --git a/main/xiaozhi-server/core/handle/helloHandle.py b/main/xiaozhi-server/core/handle/helloHandle.py
index a4220d5a..129b0aa7 100644
--- a/main/xiaozhi-server/core/handle/helloHandle.py
+++ b/main/xiaozhi-server/core/handle/helloHandle.py
@@ -1,5 +1,6 @@
 import time
 import json
+import uuid
 import random
 import asyncio
 from core.utils.dialogue import Message
@@ -105,6 +106,9 @@ async def checkWakeupWords(conn, text):
     # 播放唤醒词回复
     conn.client_abort = False
 
+    # 将唤醒词回复视为新会话，生成新的 sentence_id，确保流控器重置
+    conn.sentence_id = str(uuid.uuid4().hex)
+
     conn.logger.bind(tag=TAG).info(f"播放唤醒词回复: {response.get('text')}")
     await sendAudioMessage(conn, SentenceType.FIRST, opus_packets, response.get("text"))
     await sendAudioMessage(conn, SentenceType.LAST, [], None)
diff --git a/main/xiaozhi-server/core/handle/sendAudioHandle.py b/main/xiaozhi-server/core/handle/sendAudioHandle.py
index 8198dfb0..323056d1 100644
--- a/main/xiaozhi-server/core/handle/sendAudioHandle.py
+++ b/main/xiaozhi-server/core/handle/sendAudioHandle.py
@@ -133,12 +133,27 @@ def _get_or_create_rate_controller(conn, frame_duration, is_single_packet):
     Returns:
         (rate_controller, flow_control)
     """
-    # 判断是否需要重置：单包模式且 sentence_id 变化，或者控制器不存在
-    need_reset = (
-        is_single_packet
-        and getattr(conn, "audio_flow_control", {}).get("sentence_id")
-        != conn.sentence_id
-    ) or not hasattr(conn, "audio_rate_controller")
+    # 检查是否需要重置控制器
+    need_reset = False
+
+    if not hasattr(conn, "audio_rate_controller"):
+        # 控制器不存在，需要创建
+        need_reset = True
+    else:
+        rate_controller = conn.audio_rate_controller
+
+        # 后台发送任务已停止, 则需要重置
+        if (
+            not rate_controller.pending_send_task
+            or rate_controller.pending_send_task.done()
+        ):
+            need_reset = True
+        # 当sentence_id 变化，需要重置
+        elif (
+            getattr(conn, "audio_flow_control", {}).get("sentence_id")
+            != conn.sentence_id
+        ):
+            need_reset = True
 
     if need_reset:
         # 创建或获取 rate_controller