diff --git a/core/adapters/qianniu_adapter.py b/core/adapters/qianniu_adapter.py
index 452f167..620dbe8 100644
--- a/core/adapters/qianniu_adapter.py
+++ b/core/adapters/qianniu_adapter.py
@@ -136,10 +136,27 @@ class QianniuAdapter(BaseAdapter):
             logger.error(f"[QianniuAdapter] 发送失败: {e}")
 
     def _extract_urls(self, text: str) -> List[str]:
-        if not text: return []
+        if not text:
+            return []
         image_exts = (".jpg", ".jpeg", ".png", ".gif", ".webp", ".bmp")
-        candidates = re.findall(r'https?://[^\s#]+', text)
-        return [u for u in candidates if any(ext in u.lower() for ext in image_exts)]
+        candidates = re.findall(r'https?://[^\s#,"\'}\]]+', text)
+        urls: List[str] = []
+        seen = set()
+
+        for candidate in candidates:
+            url = str(candidate or "").strip().rstrip('\'".,;:!?)')
+            lower = url.lower()
+            if not any(ext in lower for ext in image_exts):
+                continue
+            # 过滤被卡片/JSON 串污染的伪图片链接
+            if any(marker in lower for marker in ("%22title%22", "%22topic%22", '"title":', '"topic":', "%7d")):
+                continue
+            if url in seen:
+                continue
+            seen.add(url)
+            urls.append(url)
+
+        return urls
 
     @staticmethod
     def _safe_int(value: Any, default: int = 0) -> int: