diff --git a/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/admin/security/SecurityOrderController.java b/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/admin/security/SecurityOrderController.java
index d908323..d7888aa 100644
--- a/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/admin/security/SecurityOrderController.java
+++ b/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/admin/security/SecurityOrderController.java
@@ -94,7 +94,7 @@ public class SecurityOrderController {
     @Operation(summary = "误报标记", description = "将安保工单标记为误报并完成")
     @PreAuthorize("@ss.hasPermission('ops:security-order:complete')")
     public CommonResult<Boolean> falseAlarmOrder(@Valid @RequestBody SecurityOrderIdReqVO reqVO) {
-        securityOrderService.falseAlarmOrder(reqVO.getOrderId(), SecurityFrameworkUtils.getLoginUserId());
+        securityOrderService.falseAlarmOrder(reqVO.getOrderId());
         return success(true);
     }
 
diff --git a/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/open/security/SecurityOrderOpenController.java b/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/open/security/SecurityOrderOpenController.java
index aa20670..0e88f0b 100644
--- a/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/open/security/SecurityOrderOpenController.java
+++ b/viewsh-module-ops/viewsh-module-ops-server/src/main/java/com/viewsh/module/ops/controller/open/security/SecurityOrderOpenController.java
@@ -99,7 +99,7 @@ public class SecurityOrderOpenController {
     @ApiSignature
     @PermitAll
     public CommonResult<Boolean> falseAlarmOrder(@Valid @RequestBody SecurityOrderIdReqVO reqVO) {
-        securityOrderService.falseAlarmOrder(reqVO.getOrderId(), null);
+        securityOrderService.falseAlarmOrder(reqVO.getOrderId());
         return success(true);
     }
 
diff --git a/viewsh-module-ops/viewsh-module-security-biz/src/main/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderService.java b/viewsh-module-ops/viewsh-module-security-biz/src/main/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderService.java
index b77cb47..d04b45c 100644
--- a/viewsh-module-ops/viewsh-module-security-biz/src/main/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderService.java
+++ b/viewsh-module-ops/viewsh-module-security-biz/src/main/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderService.java
@@ -30,7 +30,14 @@ public interface SecurityOrderService {
     void confirmOrder(Long orderId, Long userId);
 
     /**
-     * 自动完单（对方系统调用，无需提交结果）
+     * 自动完单（由边缘系统调用，告警自动解除）
+     * <p>
+     * 根据当前工单状态：
+     * <ul>
+     *   <li>PENDING（未派单）→ 直接取消</li>
+     *   <li>DISPATCHED / CONFIRMED / ARRIVED / PAUSED → 强制完成</li>
+     *   <li>已终态 → 幂等跳过</li>
+     * </ul>
      *
      * @param orderId 工单ID
      * @param remark  备注
@@ -45,12 +52,11 @@ public interface SecurityOrderService {
     void manualCompleteOrder(SecurityOrderCompleteReqDTO req);
 
     /**
-     * 误报标记（将工单标记为误报并完成）
+     * 误报标记（复用自动完单逻辑，额外标记误报）
      *
-     * @param orderId    工单ID
-     * @param operatorId 操作人ID（可为 null，为 null 时取已分配人员）
+     * @param orderId 工单ID
      */
-    void falseAlarmOrder(Long orderId, Long operatorId);
+    void falseAlarmOrder(Long orderId);
 
     /**
      * 根据工单ID查询安保扩展信息
diff --git a/viewsh-module-ops/viewsh-module-security-biz/src/main/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderServiceImpl.java b/viewsh-module-ops/viewsh-module-security-biz/src/main/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderServiceImpl.java
index 8f453c9..491ce10 100644
--- a/viewsh-module-ops/viewsh-module-security-biz/src/main/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderServiceImpl.java
+++ b/viewsh-module-ops/viewsh-module-security-biz/src/main/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderServiceImpl.java
@@ -163,12 +163,42 @@ public class SecurityOrderServiceImpl implements SecurityOrderService {
         OpsOrderDO order = getOrderOrThrow(orderId);
         validateOrderType(order);
 
-        // 状态转换 → COMPLETED（扩展表时间 + 业务日志由 EventListener 统一记录，主表 endTime 由状态机统一设置）
-        orderStateMachine.transition(order, WorkOrderStatusEnum.COMPLETED,
-                OperatorTypeEnum.SYSTEM, null,
-                StrUtil.isNotBlank(remark) ? remark : "系统自动完单");
+        String effectiveRemark = StrUtil.isNotBlank(remark) ? remark : "系统自动完单";
+        WorkOrderStatusEnum currentStatus = WorkOrderStatusEnum.valueOf(order.getStatus());
 
-        log.info("安保工单自动完单: orderId={}", orderId);
+        // 1. 已经是终态，幂等跳过
+        if (currentStatus == WorkOrderStatusEnum.COMPLETED || currentStatus == WorkOrderStatusEnum.CANCELLED) {
+            log.info("安保工单已处于终态，跳过自动完单: orderId={}, status={}", orderId, currentStatus);
+            return;
+        }
+        // 2. PENDING：未派单，直接取消（PENDING → CANCELLED 规则已支持）
+        if (currentStatus == WorkOrderStatusEnum.PENDING) {
+            orderStateMachine.transition(order, WorkOrderStatusEnum.CANCELLED,
+                    OperatorTypeEnum.SYSTEM, null, effectiveRemark + "（工单未派单）");
+        }
+        // 3. 其他非终态（DISPATCHED / CONFIRMED / ARRIVED / PAUSED）→ 强制跳转 COMPLETED
+        else {
+            orderStateMachine.forceTransition(order, WorkOrderStatusEnum.COMPLETED,
+                    OperatorTypeEnum.SYSTEM, null, effectiveRemark);
+        }
+
+        log.info("安保工单自动结单: orderId={}, 原始状态={}", orderId, currentStatus);
+    }
+
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void falseAlarmOrder(Long orderId) {
+        // 复用自动完单逻辑
+        autoCompleteOrder(orderId, "误报");
+
+        // 更新扩展表：标记误报
+        OpsOrderSecurityExtDO extUpdate = new OpsOrderSecurityExtDO();
+        extUpdate.setOpsOrderId(orderId);
+        extUpdate.setFalseAlarm(true);
+        extUpdate.setResult("误报");
+        securityExtMapper.insertOrUpdateSelective(extUpdate);
+
+        log.info("安保工单误报标记: orderId={}", orderId);
     }
 
     @Override
@@ -196,29 +226,6 @@ public class SecurityOrderServiceImpl implements SecurityOrderService {
         log.info("安保工单人工完单: orderId={}", req.getOrderId());
     }
 
-    @Override
-    @Transactional(rollbackFor = Exception.class)
-    public void falseAlarmOrder(Long orderId, Long operatorId) {
-        OpsOrderDO order = getOrderOrThrow(orderId);
-        validateOrderType(order);
-
-        // 如果 operatorId 为 null（open-api 调用），取已分配人员
-        Long effectiveOperatorId = resolveOperatorId(orderId, operatorId);
-
-        // 状态转换 → COMPLETED
-        orderStateMachine.transition(order, WorkOrderStatusEnum.COMPLETED,
-                OperatorTypeEnum.SECURITY_GUARD, effectiveOperatorId, "误报标记");
-
-        // 更新扩展表：标记误报 + 结果
-        OpsOrderSecurityExtDO extUpdate = new OpsOrderSecurityExtDO();
-        extUpdate.setOpsOrderId(orderId);
-        extUpdate.setFalseAlarm(true);
-        extUpdate.setResult("误报");
-        securityExtMapper.insertOrUpdateSelective(extUpdate);
-
-        log.info("安保工单误报标记: orderId={}", orderId);
-    }
-
     @Override
     public OpsOrderSecurityExtDO getSecurityExt(Long opsOrderId) {
         return securityExtMapper.selectByOpsOrderId(opsOrderId);
diff --git a/viewsh-module-ops/viewsh-module-security-biz/src/test/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderServiceTest.java b/viewsh-module-ops/viewsh-module-security-biz/src/test/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderServiceTest.java
index 343183a..14d9676 100644
--- a/viewsh-module-ops/viewsh-module-security-biz/src/test/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderServiceTest.java
+++ b/viewsh-module-ops/viewsh-module-security-biz/src/test/java/com/viewsh/module/ops/security/service/securityorder/SecurityOrderServiceTest.java
@@ -251,8 +251,8 @@ public class SecurityOrderServiceTest {
         // 执行
         securityOrderService.autoCompleteOrder(TEST_ORDER_ID, "告警自动解除");
 
-        // 验证状态机调用
-        verify(orderStateMachine).transition(
+        // 验证状态机调用（ARRIVED 非终态，走 forceTransition）
+        verify(orderStateMachine).forceTransition(
                 eq(order),
                 eq(WorkOrderStatusEnum.COMPLETED),
                 eq(OperatorTypeEnum.SYSTEM),
@@ -260,14 +260,7 @@ public class SecurityOrderServiceTest {
                 eq("告警自动解除")
         );
 
-        // 验证主表 endTime 更新
-        ArgumentCaptor<OpsOrderDO> updateCaptor = ArgumentCaptor.forClass(OpsOrderDO.class);
-        verify(opsOrderMapper).updateById(updateCaptor.capture());
-        OpsOrderDO updated = updateCaptor.getValue();
-        assertEquals(TEST_ORDER_ID, updated.getId());
-        assertNotNull(updated.getEndTime());
-
-        // 验证不再直接写扩展表时间
+        // 验证不直接写扩展表
         verify(securityExtMapper, never()).insertOrUpdateSelective(any());
     }
 
@@ -281,7 +274,7 @@ public class SecurityOrderServiceTest {
         securityOrderService.autoCompleteOrder(TEST_ORDER_ID, null);
 
         // 验证使用默认备注
-        verify(orderStateMachine).transition(
+        verify(orderStateMachine).forceTransition(
                 any(), eq(WorkOrderStatusEnum.COMPLETED),
                 eq(OperatorTypeEnum.SYSTEM), isNull(),
                 eq("系统自动完单")
@@ -298,7 +291,7 @@ public class SecurityOrderServiceTest {
         securityOrderService.autoCompleteOrder(TEST_ORDER_ID, "  ");
 
         // 验证使用默认备注
-        verify(orderStateMachine).transition(
+        verify(orderStateMachine).forceTransition(
                 any(), eq(WorkOrderStatusEnum.COMPLETED),
                 eq(OperatorTypeEnum.SYSTEM), isNull(),
                 eq("系统自动完单")
@@ -311,6 +304,87 @@ public class SecurityOrderServiceTest {
                 () -> securityOrderService.autoCompleteOrder(999L, "test"));
     }
 
+    @Test
+    void testAutoCompleteOrder_Pending_ShouldCancel() {
+        // 准备：PENDING 状态工单
+        OpsOrderDO order = buildSecurityOrder(TEST_ORDER_ID, WorkOrderStatusEnum.PENDING);
+        orderDB.put(TEST_ORDER_ID, order);
+
+        // 执行
+        securityOrderService.autoCompleteOrder(TEST_ORDER_ID, "告警自动解除");
+
+        // 验证：走正常 transition → CANCELLED
+        verify(orderStateMachine).transition(
+                eq(order),
+                eq(WorkOrderStatusEnum.CANCELLED),
+                eq(OperatorTypeEnum.SYSTEM),
+                isNull(),
+                eq("告警自动解除（工单未派单）")
+        );
+        // 不应调用 forceTransition
+        verify(orderStateMachine, never()).forceTransition(any(), any(), any(), any(), any());
+    }
+
+    @Test
+    void testAutoCompleteOrder_Dispatched_ShouldForceComplete() {
+        // 准备：DISPATCHED 状态工单
+        OpsOrderDO order = buildSecurityOrder(TEST_ORDER_ID, WorkOrderStatusEnum.DISPATCHED);
+        orderDB.put(TEST_ORDER_ID, order);
+
+        // 执行
+        securityOrderService.autoCompleteOrder(TEST_ORDER_ID, "告警自动解除");
+
+        // 验证：走 forceTransition → COMPLETED
+        verify(orderStateMachine).forceTransition(
+                eq(order),
+                eq(WorkOrderStatusEnum.COMPLETED),
+                eq(OperatorTypeEnum.SYSTEM),
+                isNull(),
+                eq("告警自动解除")
+        );
+    }
+
+    @Test
+    void testAutoCompleteOrder_AlreadyCompleted_Idempotent() {
+        // 准备：已完成工单
+        OpsOrderDO order = buildSecurityOrder(TEST_ORDER_ID, WorkOrderStatusEnum.COMPLETED);
+        orderDB.put(TEST_ORDER_ID, order);
+
+        // 执行：不应抛异常
+        securityOrderService.autoCompleteOrder(TEST_ORDER_ID, "告警自动解除");
+
+        // 验证：状态机未被调用
+        verify(orderStateMachine, never()).transition(any(), any(), any(), any(), any());
+        verify(orderStateMachine, never()).forceTransition(any(), any(), any(), any(), any());
+    }
+
+    @Test
+    void testFalseAlarmOrder_DelegatesToAutoCompleteAndMarksExt() {
+        // 准备：DISPATCHED 状态工单
+        OpsOrderDO order = buildSecurityOrder(TEST_ORDER_ID, WorkOrderStatusEnum.DISPATCHED);
+        orderDB.put(TEST_ORDER_ID, order);
+
+        // 执行
+        securityOrderService.falseAlarmOrder(TEST_ORDER_ID);
+
+        // 验证：forceTransition 被调用（通过 autoCompleteOrder 委托）
+        verify(orderStateMachine).forceTransition(
+                eq(order),
+                eq(WorkOrderStatusEnum.COMPLETED),
+                eq(OperatorTypeEnum.SYSTEM),
+                isNull(),
+                eq("误报")
+        );
+
+        // 验证：扩展表写入误报标记
+        ArgumentCaptor<OpsOrderSecurityExtDO> extCaptor = ArgumentCaptor.forClass(OpsOrderSecurityExtDO.class);
+        verify(securityExtMapper).insertOrUpdateSelective(extCaptor.capture());
+        OpsOrderSecurityExtDO extUpdate = extCaptor.getValue();
+        assertEquals(TEST_ORDER_ID, extUpdate.getOpsOrderId());
+        assertTrue(extUpdate.getFalseAlarm());
+        assertEquals("误报", extUpdate.getResult());
+    }
+
     // ==================== 人工完单测试 ====================
 
     @Test