diff --git a/scripts/push_predictions.py b/scripts/push_predictions.py
index baa91eb..9ac9712 100644
--- a/scripts/push_predictions.py
+++ b/scripts/push_predictions.py
@@ -15,6 +15,10 @@
 
     export LABEL_STUDIO_API_KEY=xxxx
 
+新版 Label Studio 默认只认 **JWT 个人访问令牌**（组织设置里 `legacy_api_tokens_enabled=false`）。
+脚本会自动识别：令牌形如 JWT（两个点分三段）时先用 `/api/token/refresh/` 换取 access token
+并以 `Bearer` 发送，否则按旧式 `Token` 发送。
+
 图片路径从任务的 `/data/local-files/?d=...` 还原，所以 `--document-root` 必须和
 Label Studio 的 `LABEL_STUDIO_LOCAL_FILES_DOCUMENT_ROOT` 一致。
 
@@ -49,7 +53,25 @@ class LabelStudio:
 
         self.url = url.rstrip("/")
         self.session = requests.Session()
-        self.session.headers["Authorization"] = f"Token {token}"
+        self.session.headers["Authorization"] = self._authorization(token)
+
+    def _authorization(self, token: str) -> str:
+        """区分两种令牌。
+
+        新版默认关闭了旧式 `Token xxx`（组织设置 legacy_api_tokens_enabled=false），
+        个人访问令牌是一个 JWT refresh token，要先换成 access token 再以 Bearer 发送。
+        """
+        if token.count(".") != 2:                      # 不是 JWT，按旧式 Token 处理
+            return f"Token {token}"
+        response = self.session.post(
+            f"{self.url}/api/token/refresh/", json={"refresh": token}, timeout=60
+        )
+        if response.status_code >= 400:
+            raise RuntimeError(
+                f"用个人访问令牌换取 access token 失败（HTTP {response.status_code}）："
+                f"{response.text[:200]}"
+            )
+        return f"Bearer {response.json()['access']}"
 
     def tasks(self, project: int, page_size: int = 500) -> list[dict]:
         """列出项目里的全部任务（只取 id 与 data，分页拉完）。"""
@@ -179,7 +201,11 @@ def main() -> int:
         logger.error("%s", exc)
         return 1
 
-    client = LabelStudio(args.url, args.token)
+    try:
+        client = LabelStudio(args.url, args.token)
+    except RuntimeError as exc:
+        logger.error("%s", exc)
+        return 1
     logger.info("拉取项目 %d 的任务列表…", args.project)
     tasks = client.tasks(args.project)
     if args.limit:
diff --git a/tests/test_push_predictions.py b/tests/test_push_predictions.py
index 17310d4..ca24ebe 100644
--- a/tests/test_push_predictions.py
+++ b/tests/test_push_predictions.py
@@ -33,6 +33,10 @@ class _FakeResponse:
         self._payload = payload
         self.status_code = status
 
+    @property
+    def text(self):
+        return str(self._payload)
+
     def json(self):
         return self._payload
 
@@ -86,3 +90,42 @@ def test_tasks_stops_on_empty_page(client):
     client.session = _FakeSession([{"tasks": [{"id": 1}]}, {"tasks": []}])
     assert [t["id"] for t in client.tasks(39)] == [1]
     assert len(client.session.calls) == 2
+
+
+# ---------------- 两种令牌 ----------------
+
+
+class _TokenSession:
+    def __init__(self, access="ACCESS", status=200):
+        self.headers = {}
+        self.access, self.status, self.posted = access, status, []
+
+    def post(self, url, json=None, timeout=None):
+        self.posted.append((url, json))
+        return _FakeResponse({"access": self.access}, self.status)
+
+
+def test_legacy_token_is_sent_as_token(monkeypatch):
+    client = pp.LabelStudio.__new__(pp.LabelStudio)
+    client.url = "http://ls"
+    client.session = _TokenSession()
+    assert client._authorization("c657261234567890") == "Token c657261234567890"
+    assert client.session.posted == []          # 旧式令牌不需要换取
+
+
+def test_jwt_personal_token_is_exchanged_for_a_bearer(monkeypatch):
+    """新版默认禁用旧式 token，个人访问令牌要先换成 access token。"""
+    client = pp.LabelStudio.__new__(pp.LabelStudio)
+    client.url = "http://ls"
+    client.session = _TokenSession(access="AAA")
+    assert client._authorization("aaa.bbb.ccc") == "Bearer AAA"
+    assert client.session.posted[0][0] == "http://ls/api/token/refresh/"
+    assert client.session.posted[0][1] == {"refresh": "aaa.bbb.ccc"}
+
+
+def test_failed_exchange_reports_clearly():
+    client = pp.LabelStudio.__new__(pp.LabelStudio)
+    client.url = "http://ls"
+    client.session = _TokenSession(status=401)
+    with pytest.raises(RuntimeError, match="access token 失败"):
+        client._authorization("aaa.bbb.ccc")