diff --git a/lib/common/static/options_panel.js b/lib/common/static/options_panel.js
index 1dbf6d3..7f18a98 100644
--- a/lib/common/static/options_panel.js
+++ b/lib/common/static/options_panel.js
@@ -17,6 +17,12 @@
     expandedPosInst: null,
   };
 
+  let lastGoodPositions = null;
+  let lastGoodPositionsAt = 0;
+  let positionsRefreshSeq = 0;
+  let refreshAllTimer = null;
+  const POSITIONS_STALE_MS = 45000;
+
   function fmt(v, d) {
     if (v === null || v === undefined || Number.isNaN(Number(v))) return "—";
     return Number(v).toFixed(d == null ? 2 : d);
@@ -570,20 +576,38 @@
     }
   }
 
-  async function refreshPositions() {
-    const d = await apiJson("/api/options/positions");
+  function resolvePositionsList(d) {
+    const now = Date.now();
+    const list = (d && d.ok && d.positions) ? d.positions : [];
+    if (d && d.ok) {
+      if (list.length) {
+        lastGoodPositions = list;
+        lastGoodPositionsAt = now;
+        return list;
+      }
+      lastGoodPositions = null;
+      lastGoodPositionsAt = 0;
+      return list;
+    }
+    if (lastGoodPositions && lastGoodPositions.length && now - lastGoodPositionsAt < POSITIONS_STALE_MS) {
+      return lastGoodPositions;
+    }
+    return [];
+  }
+
+  function paintPositions(list) {
     const wrap = document.getElementById("opt-pos-cards");
     const empty = document.getElementById("opt-pos-empty");
     const livePane = document.getElementById("opt-pos-live");
-    const list = (d.ok && d.positions) || [];
+    if (!wrap) return;
     wrap.innerHTML = "";
     if (!list.length) {
-      empty.style.display = "";
+      if (empty) empty.style.display = "";
       state.expandedPosInst = null;
       if (livePane) livePane.classList.remove("options-pos-live-pane--accordion");
       return;
     }
-    empty.style.display = "none";
+    if (empty) empty.style.display = "none";
     const multi = list.length >= 2;
     wrap.classList.toggle("opt-pos-cards--accordion", multi);
     if (livePane) livePane.classList.toggle("options-pos-live-pane--accordion", multi);
@@ -611,6 +635,13 @@
     }
   }
 
+  async function refreshPositions() {
+    const seq = ++positionsRefreshSeq;
+    const d = await apiJson("/api/options/positions");
+    if (seq !== positionsRefreshSeq) return;
+    paintPositions(resolvePositionsList(d));
+  }
+
   async function refreshStats() {
     const d = await apiJson("/api/options/stats");
     const winEl = document.getElementById("opt-stats-winrate");
@@ -704,9 +735,13 @@
   }
 
   function refreshAllPositions() {
-    refreshPositions();
-    refreshStats();
-    refreshHistory();
+    if (refreshAllTimer) clearTimeout(refreshAllTimer);
+    refreshAllTimer = setTimeout(function () {
+      refreshAllTimer = null;
+      refreshPositions();
+      refreshStats();
+      refreshHistory();
+    }, 120);
   }
 
   function bootOptionsPanel() {
diff --git a/lib/exchange/okx_options_lib.py b/lib/exchange/okx_options_lib.py
index 63fc51f..e9284e1 100644
--- a/lib/exchange/okx_options_lib.py
+++ b/lib/exchange/okx_options_lib.py
@@ -4,6 +4,7 @@ from __future__ import annotations
 import json
 import math
 import re
+import threading
 import time
 from typing import Any, Callable
 
@@ -628,7 +629,26 @@ def place_option_market_order(
         return {"ok": False, "msg": _okx_trade_error_message(e)}
 
 
-def fetch_option_positions(ex: ccxt.okx) -> list[dict[str, Any]]:
+_OPTION_POSITIONS_CACHE: dict[str, Any] = {"updated_at": 0.0, "rows": None, "failed": False}
+_OPTION_POSITIONS_CACHE_LOCK = threading.Lock()
+_OPTION_POSITIONS_CACHE_TTL = 4.0
+_OPTION_POSITIONS_STALE_OK_SEC = 30.0
+
+
+def invalidate_option_positions_cache() -> None:
+    with _OPTION_POSITIONS_CACHE_LOCK:
+        _OPTION_POSITIONS_CACHE["updated_at"] = 0.0
+        _OPTION_POSITIONS_CACHE["failed"] = False
+
+
+def fetch_option_positions(ex: ccxt.okx) -> list[dict[str, Any]] | None:
+    """期权持仓:有仓返回列表,无仓返回 [],API 失败返回 None(短时回退缓存)."""
+    now = time.time()
+    with _OPTION_POSITIONS_CACHE_LOCK:
+        age = now - float(_OPTION_POSITIONS_CACHE["updated_at"] or 0.0)
+        cached = _OPTION_POSITIONS_CACHE["rows"]
+        if age < _OPTION_POSITIONS_CACHE_TTL and cached is not None and not _OPTION_POSITIONS_CACHE["failed"]:
+            return list(cached)
     try:
         rows = ex.private_get_account_positions({"instType": "OPTION"}).get("data") or []
         out = []
@@ -639,9 +659,21 @@ def fetch_option_positions(ex: ccxt.okx) -> list[dict[str, Any]]:
             if pos is None or abs(pos) < 1e-12:
                 continue
             out.append(r)
+        with _OPTION_POSITIONS_CACHE_LOCK:
+            _OPTION_POSITIONS_CACHE["updated_at"] = now
+            _OPTION_POSITIONS_CACHE["rows"] = out
+            _OPTION_POSITIONS_CACHE["failed"] = False
         return out
     except Exception:
-        return []
+        with _OPTION_POSITIONS_CACHE_LOCK:
+            cached = _OPTION_POSITIONS_CACHE["rows"]
+            age = now - float(_OPTION_POSITIONS_CACHE["updated_at"] or 0.0)
+            if cached is not None and age < _OPTION_POSITIONS_STALE_OK_SEC:
+                return list(cached)
+            _OPTION_POSITIONS_CACHE["updated_at"] = now
+            _OPTION_POSITIONS_CACHE["rows"] = None
+            _OPTION_POSITIONS_CACHE["failed"] = True
+        return None
 
 
 def fetch_option_position_history(
@@ -700,9 +732,12 @@ def resolve_option_close_from_history(
 
 def fetch_options_unrealized_pnl_usdc(ex: ccxt.okx) -> float | None:
     """期权持仓未实现盈亏合计(USDC,统计口径与 USDT 1:1)."""
+    positions = fetch_option_positions(ex)
+    if positions is None:
+        return None
     total = 0.0
     found = False
-    for pos in fetch_option_positions(ex):
+    for pos in positions:
         upl = _safe_float(pos.get("upl"))
         if upl is None:
             continue
diff --git a/lib/instance/templates/embed_boot_scripts.html b/lib/instance/templates/embed_boot_scripts.html
index 47dc661..6068b74 100644
--- a/lib/instance/templates/embed_boot_scripts.html
+++ b/lib/instance/templates/embed_boot_scripts.html
@@ -1081,6 +1081,16 @@ function paintRealtimePnl(v){
         pnlEl.classList.toggle("pnl-neg", n < 0);
     });
 }
+let lastRealtimePnl = null;
+function updateRealtimePnl(v){
+    if(v != null && !Number.isNaN(Number(v))){
+        lastRealtimePnl = Number(v);
+        paintRealtimePnl(v);
+        return;
+    }
+    if(lastRealtimePnl != null) return;
+    paintRealtimePnl(v);
+}
 function sumOrdersFloatPnl(orders){
     if(!orders || !orders.length) return null;
     let total = 0, found = false;
@@ -1153,7 +1163,7 @@ function applyAccountSnapshot(data){
         setFundsFieldText("options-trading-usdc", `${Number(data.options_trading_usdc).toFixed(2)} USDC`);
     }
     if(typeof data.unrealized_pnl !== "undefined"){
-        paintRealtimePnl(data.unrealized_pnl);
+        updateRealtimePnl(data.unrealized_pnl);
     }
     if(typeof data.available_trading_usdt !== "undefined" && data.available_trading_usdt !== null){
         latestAvailableUsdt = Number(data.available_trading_usdt);
diff --git a/lib/instance/templates/index.html b/lib/instance/templates/index.html
index a1056d1..6e9124b 100644
--- a/lib/instance/templates/index.html
+++ b/lib/instance/templates/index.html
@@ -1658,6 +1658,16 @@ function paintRealtimePnl(v){
         pnlEl.classList.toggle("pnl-neg", n < 0);
     });
 }
+let lastRealtimePnl = null;
+function updateRealtimePnl(v){
+    if(v != null && !Number.isNaN(Number(v))){
+        lastRealtimePnl = Number(v);
+        paintRealtimePnl(v);
+        return;
+    }
+    if(lastRealtimePnl != null) return;
+    paintRealtimePnl(v);
+}
 function sumOrdersFloatPnl(orders){
     if(!orders || !orders.length) return null;
     let total = 0, found = false;
@@ -1730,7 +1740,7 @@ function applyAccountSnapshot(data){
         setFundsFieldText("options-trading-usdc", `${Number(data.options_trading_usdc).toFixed(2)} USDC`);
     }
     if(typeof data.unrealized_pnl !== "undefined"){
-        paintRealtimePnl(data.unrealized_pnl);
+        updateRealtimePnl(data.unrealized_pnl);
     }
     if(typeof data.available_trading_usdt !== "undefined" && data.available_trading_usdt !== null){
         latestAvailableUsdt = Number(data.available_trading_usdt);
diff --git a/lib/options/options_hub_lib.py b/lib/options/options_hub_lib.py
index caba01f..adb1f0d 100644
--- a/lib/options/options_hub_lib.py
+++ b/lib/options/options_hub_lib.py
@@ -53,6 +53,8 @@ def build_options_hub_snapshot(cfg: dict[str, Any]) -> dict[str, Any]:
         return {"ok": False, "enabled": True, "msg": reason or "期权 API 未配置"}
     try:
         raw = cfg["fetch_option_positions"](ex)
+        if raw is None:
+            return {"ok": False, "enabled": True, "msg": "获取期权持仓失败"}
         positions = [cfg["format_position_row"](p) for p in raw]
         upl_total = 0.0
         has_upl = False
diff --git a/lib/options/options_register.py b/lib/options/options_register.py
index 162fb04..fdbb1e4 100644
--- a/lib/options/options_register.py
+++ b/lib/options/options_register.py
@@ -3,6 +3,7 @@ from __future__ import annotations
 
 import os
 import threading
+import time
 from typing import Any
 
 from flask import Flask, jsonify, redirect, request, url_for
@@ -142,14 +143,34 @@ def _budget_full_usdc(cfg: dict[str, Any], ex: Any) -> tuple[float | None, str]:
     return float(raw), ""
 
 
-def _sync_options_trades(cfg: dict[str, Any]) -> None:
+_OPTIONS_SYNC_LOCK = threading.Lock()
+_OPTIONS_SYNC_LAST_AT = 0.0
+_OPTIONS_SYNC_INTERVAL_SEC = 15.0
+
+
+def _sync_options_trades(
+    cfg: dict[str, Any],
+    *,
+    raw_positions: list[dict[str, Any]] | None = None,
+    force: bool = False,
+) -> None:
     ex = cfg.get("exchange_options")
     if ex is None:
         return
+    now = time.time()
+    with _OPTIONS_SYNC_LOCK:
+        if not force and now - _OPTIONS_SYNC_LAST_AT < _OPTIONS_SYNC_INTERVAL_SEC:
+            return
+        _OPTIONS_SYNC_LAST_AT = now
     from lib.exchange.okx_options_lib import fetch_option_position_history
     from lib.options.options_monitor_lib import reconcile_live_open_trades, sync_open_options_trades
 
-    raw = cfg["fetch_option_positions"](ex)
+    if raw_positions is None:
+        raw = cfg["fetch_option_positions"](ex)
+        if raw is None:
+            return
+    else:
+        raw = raw_positions
     live_ids = {str(p.get("instId") or "") for p in raw if str(p.get("instId") or "")}
 
     def _hist(inst_id: str):
@@ -348,6 +369,10 @@ def register_options_routes(app: Flask, cfg: dict[str, Any]) -> None:
             conn.commit()
         finally:
             conn.close()
+        from lib.exchange.okx_options_lib import invalidate_option_positions_cache
+
+        invalidate_option_positions_cache()
+        _sync_options_trades(cfg, force=True)
         return jsonify({"ok": True, "order": order, "sizing": sizing})
 
     @app.route("/api/options/positions")
@@ -356,8 +381,10 @@ def register_options_routes(app: Flask, cfg: dict[str, Any]) -> None:
         ex, err = _require_options_ex(cfg)
         if ex is None:
             return jsonify({"ok": False, "msg": err})
-        _sync_options_trades(cfg)
         raw = cfg["fetch_option_positions"](ex)
+        if raw is None:
+            return jsonify({"ok": False, "msg": "获取期权持仓失败"})
+        _sync_options_trades(cfg, raw_positions=raw)
         rows = [cfg["format_position_row"](p) for p in raw]
         conn = cfg["get_db"]()
         try:
@@ -396,6 +423,8 @@ def register_options_routes(app: Flask, cfg: dict[str, Any]) -> None:
         if not use_market and (bid is None or bid <= 0):
             return jsonify({"ok": False, "msg": "暂无买一价,无法限价平仓"})
         raw_positions = cfg["fetch_option_positions"](ex)
+        if raw_positions is None:
+            return jsonify({"ok": False, "msg": "获取期权持仓失败"})
         pos = next((p for p in raw_positions if str(p.get("instId")) == inst_id), None)
         if not pos:
             return jsonify({"ok": False, "msg": "未找到持仓"})
@@ -465,6 +494,10 @@ def register_options_routes(app: Flask, cfg: dict[str, Any]) -> None:
                 conn.commit()
         finally:
             conn.close()
+        from lib.exchange.okx_options_lib import invalidate_option_positions_cache
+
+        invalidate_option_positions_cache()
+        _sync_options_trades(cfg, force=True)
         return jsonify({"ok": True, "order": order, "bid": bid, "sheets": close_sheets})
 
     @app.route("/api/options/convert/quote", methods=["POST"])
@@ -712,6 +745,8 @@ def _start_monitor_thread(app: Flask, cfg: dict[str, Any]) -> None:
         if ex is None:
             return []
         raw = cfg["fetch_option_positions"](ex)
+        if raw is None:
+            return []
         return [cfg["format_position_row"](p) for p in raw]
 
     def _sync(conn):
@@ -722,6 +757,8 @@ def _start_monitor_thread(app: Flask, cfg: dict[str, Any]) -> None:
         if ex is None:
             return 0
         raw = cfg["fetch_option_positions"](ex)
+        if raw is None:
+            return 0
         live_ids = {str(p.get("instId") or "") for p in raw if str(p.get("instId") or "")}
         reconcile_live_open_trades(conn, live_inst_ids=live_ids)
         return sync_open_options_trades(
diff --git a/lib/options/templates/options_panel.html b/lib/options/templates/options_panel.html
index b7b488e..4e9bdcc 100644
--- a/lib/options/templates/options_panel.html
+++ b/lib/options/templates/options_panel.html
@@ -137,4 +137,4 @@
     </div>
 </div>
 <script src="/static/options_expiry_countdown.js?v=1"></script>
-<script src="/static/options_panel.js?v=16"></script>
+<script src="/static/options_panel.js?v=17"></script>