diff --git a/utils/login_qrcode.py b/utils/login_qrcode.py
index dda3ed3..13c1cec 100644
--- a/utils/login_qrcode.py
+++ b/utils/login_qrcode.py
@@ -35,7 +35,13 @@ def remove_qrcode_file(qrcode_path: Path | None) -> bool:
 
 
 def decode_qrcode_from_path(qrcode_path: Path) -> str | None:
-    image = cv2.imread(str(qrcode_path))
+    # Windows 下 cv2.imread 不支持中文路径, 改用 np.fromfile + imdecode
+    import numpy as np
+
+    try:
+        image = cv2.imdecode(np.fromfile(str(qrcode_path), dtype=np.uint8), cv2.IMREAD_COLOR)
+    except Exception:
+        return None
     if image is None:
         return None