diff --git a/gui_app.py b/gui_app.py
index 8d36eb1..e079d06 100644
--- a/gui_app.py
+++ b/gui_app.py
@@ -953,6 +953,7 @@ class MainWindow(QMainWindow):
         
         # 重新应用筛选和高亮（保持原有的筛选状态）
         if has_search_filter:
+            self._suppress_filter_clear_once = True
             self.filter_table(self.table_search_input.text())
         elif has_status_filter:
             # 重新应用状态筛选（隐藏不匹配的行）
@@ -1569,6 +1570,29 @@ class MainWindow(QMainWindow):
     def filter_table(self, text):
         """筛选表格行并高亮关键词"""
         keyword_raw = text.strip()
+        suppress_clear = getattr(self, "_suppress_filter_clear_once", False)
+        if suppress_clear:
+            self._suppress_filter_clear_once = False
+        # 如果先全选再进行筛选，先清空勾选，避免隐藏行仍保持勾选
+        if (not suppress_clear and keyword_raw and hasattr(self, "table_select_all_checkbox")
+                and self.table_select_all_checkbox.isChecked()):
+            for config in self.configs:
+                config['勾选'] = False
+            self.table_select_all_checkbox.blockSignals(True)
+            self.table_select_all_checkbox.setChecked(False)
+            self.table_select_all_checkbox.blockSignals(False)
+            self._update_checked_count()
+            self._update_status_statistics()
+            # 同步当前页勾选框显示
+            if not self.use_model_view and hasattr(self, "config_table"):
+                for row in range(self.config_table.rowCount()):
+                    wrapper = self.config_table.cellWidget(row, 0)
+                    if wrapper:
+                        checkbox = wrapper.findChild(QCheckBox)
+                        if checkbox:
+                            checkbox.blockSignals(True)
+                            checkbox.setChecked(False)
+                            checkbox.blockSignals(False)
         if self.use_model_view:
             if not self.table_proxy:
                 return