diff --git a/electron/idcard-worker.js b/electron/idcard-worker.js
index e91ed9f..5638f3d 100644
--- a/electron/idcard-worker.js
+++ b/electron/idcard-worker.js
@@ -166,12 +166,21 @@ async function startListen() {
     // koffi 会自动处理结构体内存分配
 
     while (running) {
-      // 寻卡
-      api.Syn_StartFindIDCard(port, iin, 0);
-      // 选卡
-      api.Syn_SelectIDCard(port, sn, 0);
+      // 1. 寻卡
+      if (api.Syn_StartFindIDCard(port, iin, 0) !== 0) {
+        // 未找到卡，等待后重试
+        await new Promise((r) => setTimeout(r, 150));
+        continue;
+      }
 
-      // 读卡
+      // 2. 选卡
+      if (api.Syn_SelectIDCard(port, sn, 0) !== 0) {
+        // 选卡失败，等待后重试
+        await new Promise((r) => setTimeout(r, 150));
+        continue;
+      }
+
+      // 3. 读卡
       const data = {}; // koffi 输出对象
       const ret = api.Syn_ReadMsg(port, 0, data);