diff --git a/backend/services/authorization-service/src/application/services/authorization-application.service.ts b/backend/services/authorization-service/src/application/services/authorization-application.service.ts
index 62c89d8a..085e52b6 100644
--- a/backend/services/authorization-service/src/application/services/authorization-application.service.ts
+++ b/backend/services/authorization-service/src/application/services/authorization-application.service.ts
@@ -1727,6 +1727,11 @@ export class AuthorizationApplicationService {
 
     // 4. 检查权益状态
     if (nearestAuthCity.benefitActive) {
+      // 权益已激活，全部给该市团队
+      // 累加月度新增树数（用于月度考核）
+      nearestAuthCity.addMonthlyTrees(treeCount)
+      await this.authorizationRepository.save(nearestAuthCity)
+
       return {
         distributions: [
           { accountSequence: nearestAuthCity.userId.accountSequence, treeCount, reason: '市团队权益已激活' },
@@ -1765,13 +1770,20 @@ export class AuthorizationApplicationService {
     const distributions: Array<{ accountSequence: string; treeCount: number; reason: string }> = []
 
     if (currentTeamCount >= initialTarget) {
+      // 已达标但权益未激活（可能是月度考核失败），全部给该市团队
+      // 注：这种情况下应该由系统自动激活权益，但这里作为兜底处理
       distributions.push({
         accountSequence: nearestAuthCity.userId.accountSequence,
         treeCount,
         reason: '已达初始考核目标',
       })
+
       // 自动激活权益
       await this.tryActivateBenefit(nearestAuthCity)
+
+      // 累加月度新增树数（用于月度考核）
+      nearestAuthCity.addMonthlyTrees(treeCount)
+      await this.authorizationRepository.save(nearestAuthCity)
     } else {
       // toReachTarget: 还差多少棵达到考核目标（包括达标那一棵）
       // 业务规则：达标前的全部给上级/总部，超过达标点后才给该市团队
@@ -1800,7 +1812,7 @@ export class AuthorizationApplicationService {
             reason: `初始考核(${currentTeamCount}+${toReachTarget}=${initialTarget}/${initialTarget})，${parentReason}`,
           })
         }
-        // 超过达标点的部分，给该市团队
+        // 超过达标点的部分（第101棵开始），给该市团队
         const afterTargetCount = treeCount - toReachTarget
         if (afterTargetCount > 0) {
           distributions.push({
@@ -1809,8 +1821,15 @@ export class AuthorizationApplicationService {
             reason: `考核达标后权益生效(第${initialTarget + 1}棵起)`,
           })
         }
+
         // 自动激活权益（本次认种使其达标）
         await this.tryActivateBenefit(nearestAuthCity)
+
+        // 激活后累加月度新增树数（只计算归自己的那部分）
+        if (afterTargetCount > 0) {
+          nearestAuthCity.addMonthlyTrees(afterTargetCount)
+          await this.authorizationRepository.save(nearestAuthCity)
+        }
       }
     }