diff --git a/backend/services/planting-service/src/application/services/contract-signing.service.ts b/backend/services/planting-service/src/application/services/contract-signing.service.ts
index e22f3235..fd908497 100644
--- a/backend/services/planting-service/src/application/services/contract-signing.service.ts
+++ b/backend/services/planting-service/src/application/services/contract-signing.service.ts
@@ -329,6 +329,7 @@ export class ContractSigningService {
       provinceCode: task.provinceCode,
       cityCode: task.cityCode,
       signedAt: task.signedAt?.toISOString(),
+      priceSupplement: order.priceSupplement,
     });
   }
 
@@ -411,6 +412,7 @@ export class ContractSigningService {
           provinceCode: task.provinceCode,
           cityCode: task.cityCode,
           expiredAt: new Date().toISOString(),
+          priceSupplement: order.priceSupplement,
         });
 
         count++;
diff --git a/backend/services/planting-service/src/infrastructure/kafka/event-publisher.service.ts b/backend/services/planting-service/src/infrastructure/kafka/event-publisher.service.ts
index e40d02ff..0d89b10b 100644
--- a/backend/services/planting-service/src/infrastructure/kafka/event-publisher.service.ts
+++ b/backend/services/planting-service/src/infrastructure/kafka/event-publisher.service.ts
@@ -38,6 +38,8 @@ export interface ContractSigningEventData {
   cityCode: string;
   signedAt?: string;   // contract.signed
   expiredAt?: string;  // contract.expired
+  // [2026-02-26] 总部运营成本压力涨价（每棵树加价金额），归总部 (S0000000001)
+  priceSupplement?: number;
 }
 
 @Injectable()
diff --git a/backend/services/referral-service/src/application/event-handlers/contract-signing.handler.ts b/backend/services/referral-service/src/application/event-handlers/contract-signing.handler.ts
index 139eced4..b83c3b7f 100644
--- a/backend/services/referral-service/src/application/event-handlers/contract-signing.handler.ts
+++ b/backend/services/referral-service/src/application/event-handlers/contract-signing.handler.ts
@@ -16,6 +16,8 @@ interface ContractSigningEvent {
     cityCode: string;
     signedAt?: string;   // contract.signed
     expiredAt?: string;  // contract.expired
+    // [2026-02-26] 总部运营成本压力涨价（每棵树加价金额），归总部 (S0000000001)
+    priceSupplement?: number;
   };
 }
 
@@ -177,6 +179,7 @@ export class ContractSigningHandler implements OnModuleInit {
               provinceCode: eventData.provinceCode,
               cityCode: eventData.cityCode,
               paidAt: eventData.signedAt || new Date().toISOString(),
+              priceSupplement: eventData.priceSupplement || 0,
             },
           },
         });
@@ -245,6 +248,7 @@ export class ContractSigningHandler implements OnModuleInit {
               provinceCode: eventData.provinceCode,
               cityCode: eventData.cityCode,
               expiredAt: eventData.expiredAt || new Date().toISOString(),
+              priceSupplement: eventData.priceSupplement || 0,
             },
           },
         });