diff --git a/api/modules/packageSilence.js b/api/modules/packageSilence.js
index 688782b..ebb2e4b 100644
--- a/api/modules/packageSilence.js
+++ b/api/modules/packageSilence.js
@@ -51,6 +51,16 @@ export const packageSilenceApi = {
 		});
 	},
 
+	// 作废自己的待支付延期订单（后端先查单，已支付则按支付成功办理并拒绝作废）
+	cancelOrder(id) {
+		return request({
+			url: `${BASE}/orders/${id}/cancel`,
+			method: 'POST',
+			data: {},
+			showError: false
+		});
+	},
+
 	getRecords(package_usage_id) {
 		return request({
 			url: `${BASE}/records`,
diff --git a/pages/silence-extension/silence-extension.vue b/pages/silence-extension/silence-extension.vue
index 469d52a..eaf045e 100644
--- a/pages/silence-extension/silence-extension.vue
+++ b/pages/silence-extension/silence-extension.vue
@@ -8,7 +8,7 @@
 			<view class="blocked-title">{{ blockedMessage }}</view>
 			<view v-if="pendingOrderNo" class="blocked-desc">未完成订单：{{ pendingOrderNo }}</view>
 			<view class="blocked-actions">
-				<view v-if="pendingOrderNo" class="btn-apple btn-primary" @tap="openOrders">查看我的延期订单</view>
+				<view v-if="pendingOrderNo" class="btn-apple btn-primary" @tap="openPendingOrder">去支付或作废该订单</view>
 				<view class="btn-apple btn-secondary" @tap="goBack">返回</view>
 			</view>
 		</view>
@@ -285,6 +285,21 @@
 		}
 	};
 
+	// 有未完成订单时直接打开该订单详情：可继续支付，也可作废后重新办理
+	const openPendingOrder = async () => {
+		try {
+			const data = await packageSilenceApi.getOrders({ order_no: pendingOrderNo.value, page: 1, page_size: 1 });
+			const target = Array.isArray(data?.items) ? data.items[0] : null;
+			if (target?.id) {
+				uni.navigateTo({ url: `/pages/silence-orders/detail?id=${target.id}` });
+				return;
+			}
+		} catch (error) {
+			console.error('查询未完成延期订单失败', error);
+		}
+		openOrders();
+	};
+
 	const openOrders = () => {
 		uni.navigateTo({ url: '/pages/silence-orders/silence-orders' });
 	};
@@ -302,6 +317,11 @@
 	});
 
 	onShow(() => {
+		// 从订单详情作废未完成订单后返回：重新查资格，允许重新下单
+		if (pendingOrderNo.value && packageUsageId.value) {
+			loadEligibility();
+			return;
+		}
 		if (consumePendingPaymentRefresh(SILENCE_REFRESH_TARGET.EXTENSION)) checkLastOrder();
 	});
 </script>
diff --git a/pages/silence-orders/detail.vue b/pages/silence-orders/detail.vue
index 3d51e9b..3004463 100644
--- a/pages/silence-orders/detail.vue
+++ b/pages/silence-orders/detail.vue
@@ -16,6 +16,9 @@
 				</view>
 			</view>
 			<view v-if="canContinuePay" class="btn-apple btn-primary pay-btn" @tap="continuePay">继续支付</view>
+			<view v-if="canCancel" class="btn-apple btn-secondary cancel-btn" @tap="cancelOrder">
+				{{ cancelling ? '作废中...' : '作废订单' }}
+			</view>
 		</template>
 	</view>
 </template>
@@ -50,6 +53,29 @@
 	});
 
 	const canContinuePay = computed(() => order.value?.status === 'pending_payment' && !!order.value?.qr_content);
+	const canCancel = computed(() => order.value?.status === 'pending_payment');
+	const cancelling = ref(false);
+
+	const cancelOrder = () => {
+		if (cancelling.value || !order.value) return;
+		uni.showModal({
+			title: '作废延期订单',
+			content: '作废后该订单不能再支付，可以重新办理延期。确定作废吗？',
+			success: async (res) => {
+				if (!res.confirm) return;
+				cancelling.value = true;
+				try {
+					order.value = await packageSilenceApi.cancelOrder(order.value.id);
+					uni.showToast({ title: '已作废', icon: 'success' });
+				} catch (error) {
+					uni.showToast({ title: getSilenceErrorMessage(error, '作废失败，请稍后重试'), icon: 'none', duration: 2500 });
+					await load();
+				} finally {
+					cancelling.value = false;
+				}
+			}
+		});
+	};
 
 	const load = async () => {
 		if (!orderId.value) return;
@@ -125,7 +151,8 @@
 		}
 	}
 
-	.pay-btn {
+	.pay-btn,
+	.cancel-btn {
 		margin-top: 32rpx;
 		text-align: center;
 	}