diff --git a/deploy/profile-scripts/batch_reassess.py b/deploy/profile-scripts/batch_reassess.py
index 53c0005a..1624247e 100644
--- a/deploy/profile-scripts/batch_reassess.py
+++ b/deploy/profile-scripts/batch_reassess.py
@@ -421,6 +421,17 @@ def process_stock(code, force_today=False):
     print(f"  \u2705 LLM返回({len(full_text)}字, {result['elapsed']:.1f}s, 尝试{result['attempts']}次)", flush=True)
     
     parsed = parse_response(full_text)
+    
+    # ── 截断保护：输出过短且无信号 = 低质输出，升级 pro 重试一次 ──
+    if not parsed.get("signal") and len(full_text) < 1500:
+        print(f"  ⚠️ 输出截断({len(full_text)}字)且无信号，升级 {FALLBACK_MODEL} 重试...", flush=True)
+        from llm_client import FALLBACK_MODEL as _FBM
+        result2 = call_llm(prompt, model=_FBM, max_tokens=4096)
+        if result2["ok"] and len((result2.get("content") or "").strip()) > len(full_text):
+            full_text = result2["content"]
+            parsed = parse_response(full_text)
+            print(f"  \u2705 升级后({len(full_text)}字)", flush=True)
+    
     print(f"  信号={parsed['signal']} 区间={parsed['entry_low']}~{parsed['entry_high']} 损={parsed['stop_loss']} 盈={parsed['take_profit']} 仓位={parsed['position']}")
     
     save_result(code, full_text, parsed)