diff --git a/.env.example b/.env.example
index 3bcd412c9..ae43db016 100755
--- a/.env.example
+++ b/.env.example
@@ -44,9 +44,14 @@ OSS_ACCESS_KEY_SECRET=your-access-key-secret
 OSS_BUCKET_NAME=xiaoxia-autocut
 
 # ==================== CosyVoice 语音合成配置 ====================
+# 注意：base_url 只需写到 /api/v1，具体路径由代码拼接
+# 模型: cosyvoice-v3-flash (推荐，支持系统音色，性价比高)
+#       cosyvoice-v3-plus (高质量，系统音色少)
+#       cosyvoice-v3.5-flash / cosyvoice-v3.5-plus (仅支持克隆/设计音色，无系统音色)
+# 音色: v3系列系统音色带 _v3 后缀，如 longxiaochun_v3, longxiaoxia_v3, longanyang (无后缀)
 COSYVOICE_API_KEY=your-cosyvoice-api-key
-COSYVOICE_BASE_URL=https://dashscope.aliyuncs.com/api/v1/services/aigc/text2audio
-COSYVOICE_MODEL=cosyvoice-v1
-COSYVOICE_VOICE=longxiaochun
+COSYVOICE_BASE_URL=https://dashscope.aliyuncs.com/api/v1
+COSYVOICE_MODEL=cosyvoice-v3-flash
+COSYVOICE_VOICE=longxiaochun_v3
 COSYVOICE_SAMPLE_RATE=22050
 COSYVOICE_FORMAT=mp3
diff --git a/.env.production.example b/.env.production.example
old mode 100644
new mode 100755
index 6082c3926..43cb2312d
--- a/.env.production.example
+++ b/.env.production.example
@@ -42,10 +42,15 @@ OSS_DIRECT_UPLOAD_MAX_MB=2000
 OSS_DIRECT_UPLOAD_EXPIRE_SECONDS=900
 
 # ==================== CosyVoice 语音合成（必须配置）====================
+# 注意：base_url 只需写到 /api/v1，具体路径由代码拼接
+# 模型: cosyvoice-v3-flash (推荐，支持系统音色，性价比高)
+#       cosyvoice-v3-plus (高质量，系统音色少)
+#       cosyvoice-v3.5-flash / cosyvoice-v3.5-plus (仅支持克隆/设计音色，无系统音色)
+# 音色: v3系列系统音色带 _v3 后缀，如 longxiaochun_v3, longxiaoxia_v3, longanyang (无后缀)
 COSYVOICE_API_KEY=CHANGE_ME_COSYVOICE_API_KEY
-COSYVOICE_BASE_URL=https://dashscope.aliyuncs.com/api/v1/services/aigc/text2audio
-COSYVOICE_MODEL=cosyvoice-v1
-COSYVOICE_VOICE=longxiaochun
+COSYVOICE_BASE_URL=https://dashscope.aliyuncs.com/api/v1
+COSYVOICE_MODEL=cosyvoice-v3-flash
+COSYVOICE_VOICE=longxiaochun_v3
 COSYVOICE_SAMPLE_RATE=22050
 COSYVOICE_FORMAT=mp3
 
diff --git a/packages/application/cosyvoice_service.py b/packages/application/cosyvoice_service.py
index 76863b38a..cd6bd1dd8 100755
--- a/packages/application/cosyvoice_service.py
+++ b/packages/application/cosyvoice_service.py
@@ -131,6 +131,26 @@ class CosyVoiceService:
         )
         self._owns_client = http_client is None
 
+        # 启动时打印配置（脱敏），方便排查环境变量覆盖问题
+        if self._owns_client:
+            masked_key = ""
+            if self._api_key:
+                if len(self._api_key) > 8:
+                    masked_key = f"{self._api_key[:4]}...{self._api_key[-4:]}"
+                else:
+                    masked_key = "***"
+            logger.info(
+                "[CosyVoice Config] 初始化配置: "
+                "model=%s, base_url=%s, default_voice=%s, "
+                "sample_rate=%d, format=%s, api_key=%s",
+                self._model,
+                self._base_url,
+                getattr(settings, "cosyvoice_voice", "(unset)"),
+                settings.cosyvoice_sample_rate,
+                settings.cosyvoice_format,
+                masked_key or "(empty)",
+            )
+
     def __enter__(self) -> CosyVoiceService:
         return self