diff --git a/backend/services/contribution-service/src/api/controllers/admin.controller.ts b/backend/services/contribution-service/src/api/controllers/admin.controller.ts
index ea1ccc99..bdffc3d2 100644
--- a/backend/services/contribution-service/src/api/controllers/admin.controller.ts
+++ b/backend/services/contribution-service/src/api/controllers/admin.controller.ts
@@ -11,6 +11,7 @@ import {
   ContributionRecordSyncedEvent,
   NetworkProgressUpdatedEvent,
   SystemAccountSyncedEvent,
+  UnallocatedContributionSyncedEvent,
 } from '../../domain/events';
 import { Public } from '../../shared/guards/jwt-auth.guard';
 
@@ -487,4 +488,78 @@ export class AdminController {
       total: systemAccounts.length,
     };
   }
+
+  @Post('unallocated-contributions/publish-all')
+  @Public()
+  @ApiOperation({ summary: '发布所有未分配算力事件到 outbox，用于同步到 mining-service' })
+  async publishAllUnallocatedContributions(): Promise<{
+    success: boolean;
+    publishedCount: number;
+    failedCount: number;
+    message: string;
+  }> {
+    const unallocatedContributions = await this.prisma.unallocatedContribution.findMany({
+      where: { status: 'PENDING' },
+      select: {
+        id: true,
+        sourceAdoptionId: true,
+        sourceAccountSequence: true,
+        wouldBeAccountSequence: true,
+        unallocType: true,
+        amount: true,
+        reason: true,
+        effectiveDate: true,
+        expireDate: true,
+      },
+    });
+
+    let publishedCount = 0;
+    let failedCount = 0;
+
+    const batchSize = 100;
+    for (let i = 0; i < unallocatedContributions.length; i += batchSize) {
+      const batch = unallocatedContributions.slice(i, i + batchSize);
+
+      try {
+        await this.unitOfWork.executeInTransaction(async () => {
+          const events = batch.map((uc) => {
+            const event = new UnallocatedContributionSyncedEvent(
+              uc.sourceAdoptionId,
+              uc.sourceAccountSequence,
+              uc.wouldBeAccountSequence,
+              uc.unallocType,
+              uc.amount.toString(),
+              uc.reason,
+              uc.effectiveDate,
+              uc.expireDate,
+            );
+
+            return {
+              aggregateType: UnallocatedContributionSyncedEvent.AGGREGATE_TYPE,
+              aggregateId: `${uc.sourceAdoptionId}-${uc.unallocType}`,
+              eventType: UnallocatedContributionSyncedEvent.EVENT_TYPE,
+              payload: event.toPayload(),
+            };
+          });
+
+          await this.outboxRepository.saveMany(events);
+        });
+
+        publishedCount += batch.length;
+        this.logger.debug(`Published unallocated contribution batch ${Math.floor(i / batchSize) + 1}: ${batch.length} events`);
+      } catch (error) {
+        failedCount += batch.length;
+        this.logger.error(`Failed to publish unallocated contribution batch ${Math.floor(i / batchSize) + 1}`, error);
+      }
+    }
+
+    this.logger.log(`Published ${publishedCount} unallocated contribution events, ${failedCount} failed`);
+
+    return {
+      success: failedCount === 0,
+      publishedCount,
+      failedCount,
+      message: `Published ${publishedCount} events, ${failedCount} failed out of ${unallocatedContributions.length} total`,
+    };
+  }
 }
diff --git a/backend/services/contribution-service/src/application/services/contribution-calculation.service.ts b/backend/services/contribution-service/src/application/services/contribution-calculation.service.ts
index 8e67ce58..89ba5bad 100644
--- a/backend/services/contribution-service/src/application/services/contribution-calculation.service.ts
+++ b/backend/services/contribution-service/src/application/services/contribution-calculation.service.ts
@@ -13,7 +13,7 @@ import { SyncedReferral } from '../../domain/repositories/synced-data.repository
 import { ContributionDistributionPublisherService } from './contribution-distribution-publisher.service';
 import { ContributionRateService } from './contribution-rate.service';
 import { BonusClaimService } from './bonus-claim.service';
-import { ContributionRecordSyncedEvent, NetworkProgressUpdatedEvent, ContributionAccountUpdatedEvent, SystemAccountSyncedEvent } from '../../domain/events';
+import { ContributionRecordSyncedEvent, NetworkProgressUpdatedEvent, ContributionAccountUpdatedEvent, SystemAccountSyncedEvent, UnallocatedContributionSyncedEvent } from '../../domain/events';
 
 /**
  * 算力计算应用服务
@@ -267,7 +267,7 @@ export class ContributionCalculationService {
     const effectiveDate = result.personalRecord.effectiveDate;
     const expireDate = result.personalRecord.expireDate;
 
-    // 4. 保存未分配算力
+    // 4. 保存未分配算力并发布同步事件
     if (result.unallocatedContributions.length > 0) {
       await this.unallocatedContributionRepository.saveMany(
         result.unallocatedContributions.map((u) => ({
@@ -278,6 +278,26 @@ export class ContributionCalculationService {
           expireDate,
         })),
       );
+
+      // 发布未分配算力同步事件（用于 mining-service 同步待解锁算力）
+      for (const unallocated of result.unallocatedContributions) {
+        const event = new UnallocatedContributionSyncedEvent(
+          sourceAdoptionId,
+          sourceAccountSequence,
+          unallocated.wouldBeAccountSequence,
+          unallocated.contributionType,
+          unallocated.amount.value.toString(),
+          unallocated.reason,
+          effectiveDate,
+          expireDate,
+        );
+        await this.outboxRepository.save({
+          aggregateType: UnallocatedContributionSyncedEvent.AGGREGATE_TYPE,
+          aggregateId: `${sourceAdoptionId}-${unallocated.contributionType}`,
+          eventType: UnallocatedContributionSyncedEvent.EVENT_TYPE,
+          payload: event.toPayload(),
+        });
+      }
     }
 
     // 5. 保存系统账户算力并发布同步事件
diff --git a/backend/services/contribution-service/src/domain/events/index.ts b/backend/services/contribution-service/src/domain/events/index.ts
index 028f7e60..a4d3bb68 100644
--- a/backend/services/contribution-service/src/domain/events/index.ts
+++ b/backend/services/contribution-service/src/domain/events/index.ts
@@ -7,3 +7,4 @@ export * from './adoption-synced.event';
 export * from './contribution-record-synced.event';
 export * from './network-progress-updated.event';
 export * from './system-account-synced.event';
+export * from './unallocated-contribution-synced.event';
diff --git a/backend/services/contribution-service/src/domain/events/unallocated-contribution-synced.event.ts b/backend/services/contribution-service/src/domain/events/unallocated-contribution-synced.event.ts
new file mode 100644
index 00000000..31b26bad
--- /dev/null
+++ b/backend/services/contribution-service/src/domain/events/unallocated-contribution-synced.event.ts
@@ -0,0 +1,33 @@
+/**
+ * 未分配算力同步事件
+ * 用于同步待解锁算力到 mining-service
+ */
+export class UnallocatedContributionSyncedEvent {
+  static readonly EVENT_TYPE = 'UnallocatedContributionSynced';
+  static readonly AGGREGATE_TYPE = 'UnallocatedContribution';
+
+  constructor(
+    public readonly sourceAdoptionId: bigint,
+    public readonly sourceAccountSequence: string,
+    public readonly wouldBeAccountSequence: string | null,
+    public readonly contributionType: string, // LEVEL_NO_ANCESTOR, LEVEL_OVERFLOW, BONUS_TIER_1, BONUS_TIER_2, BONUS_TIER_3
+    public readonly amount: string,
+    public readonly reason: string | null,
+    public readonly effectiveDate: Date,
+    public readonly expireDate: Date,
+  ) {}
+
+  toPayload(): Record<string, any> {
+    return {
+      eventType: UnallocatedContributionSyncedEvent.EVENT_TYPE,
+      sourceAdoptionId: this.sourceAdoptionId.toString(),
+      sourceAccountSequence: this.sourceAccountSequence,
+      wouldBeAccountSequence: this.wouldBeAccountSequence,
+      contributionType: this.contributionType,
+      amount: this.amount,
+      reason: this.reason,
+      effectiveDate: this.effectiveDate.toISOString(),
+      expireDate: this.expireDate.toISOString(),
+    };
+  }
+}
diff --git a/backend/services/mining-service/src/application/event-handlers/contribution-event.handler.ts b/backend/services/mining-service/src/application/event-handlers/contribution-event.handler.ts
index 891e27fc..bf3defc7 100644
--- a/backend/services/mining-service/src/application/event-handlers/contribution-event.handler.ts
+++ b/backend/services/mining-service/src/application/event-handlers/contribution-event.handler.ts
@@ -94,6 +94,19 @@ export class ContributionEventHandler implements OnModuleInit {
           currentContributionPerTree: eventPayload.currentContributionPerTree,
           nextUnitTreeCount: eventPayload.nextUnitTreeCount,
         });
+      } else if (eventType === 'UnallocatedContributionSynced') {
+        this.logger.log(`Received UnallocatedContributionSynced: adoption=${eventPayload.sourceAdoptionId}, type=${eventPayload.contributionType}`);
+
+        await this.networkSyncService.handleUnallocatedContributionSynced({
+          sourceAdoptionId: eventPayload.sourceAdoptionId,
+          sourceAccountSequence: eventPayload.sourceAccountSequence,
+          wouldBeAccountSequence: eventPayload.wouldBeAccountSequence,
+          contributionType: eventPayload.contributionType,
+          amount: eventPayload.amount,
+          reason: eventPayload.reason,
+          effectiveDate: eventPayload.effectiveDate,
+          expireDate: eventPayload.expireDate,
+        });
       }
     } catch (error) {
       this.logger.error('Failed to handle contribution event', error);
diff --git a/backend/services/mining-service/src/application/services/network-sync.service.ts b/backend/services/mining-service/src/application/services/network-sync.service.ts
index b9a738c3..895be42c 100644
--- a/backend/services/mining-service/src/application/services/network-sync.service.ts
+++ b/backend/services/mining-service/src/application/services/network-sync.service.ts
@@ -21,6 +21,17 @@ interface NetworkProgressUpdatedData {
   nextUnitTreeCount: number;
 }
 
+interface UnallocatedContributionSyncedData {
+  sourceAdoptionId: string;
+  sourceAccountSequence: string;
+  wouldBeAccountSequence: string | null;
+  contributionType: string;
+  amount: string;
+  reason: string | null;
+  effectiveDate: string;
+  expireDate: string;
+}
+
 /**
  * 全网同步服务
  * 处理系统账户算力同步和全网理论算力更新
@@ -181,6 +192,54 @@ export class NetworkSyncService {
     return this.systemAccountRepository.getTotalContribution();
   }
 
+  /**
+   * 处理未分配算力同步事件
+   * 将待解锁算力同步到 PendingContributionMining 表
+   */
+  async handleUnallocatedContributionSynced(data: UnallocatedContributionSyncedData): Promise<void> {
+    try {
+      const sourceAdoptionId = BigInt(data.sourceAdoptionId);
+      const effectiveDate = new Date(data.effectiveDate);
+      const expireDate = new Date(data.expireDate);
+
+      await this.prisma.pendingContributionMining.upsert({
+        where: {
+          sourceAdoptionId_wouldBeAccountSequence_contributionType: {
+            sourceAdoptionId,
+            wouldBeAccountSequence: data.wouldBeAccountSequence || '',
+            contributionType: data.contributionType,
+          },
+        },
+        create: {
+          sourceAdoptionId,
+          sourceAccountSequence: data.sourceAccountSequence,
+          wouldBeAccountSequence: data.wouldBeAccountSequence,
+          contributionType: data.contributionType,
+          amount: new Decimal(data.amount),
+          reason: data.reason,
+          effectiveDate,
+          expireDate,
+          isExpired: false,
+          lastSyncedAt: new Date(),
+        },
+        update: {
+          amount: new Decimal(data.amount),
+          reason: data.reason,
+          effectiveDate,
+          expireDate,
+          lastSyncedAt: new Date(),
+        },
+      });
+
+      this.logger.log(
+        `Synced unallocated contribution: adoption=${data.sourceAdoptionId}, type=${data.contributionType}, amount=${data.amount}`,
+      );
+    } catch (error) {
+      this.logger.error(`Failed to sync unallocated contribution: adoption=${data.sourceAdoptionId}`, error);
+      throw error;
+    }
+  }
+
   private mapAccountType(type: string): SystemAccountType | null {
     switch (type.toUpperCase()) {
       case 'OPERATION':