diff --git a/backend/services/contribution-service/prisma/migrations/20260112020000_fix_status_varchar_length/migration.sql b/backend/services/contribution-service/prisma/migrations/20260112020000_fix_status_varchar_length/migration.sql
new file mode 100644
index 00000000..bf3449bf
--- /dev/null
+++ b/backend/services/contribution-service/prisma/migrations/20260112020000_fix_status_varchar_length/migration.sql
@@ -0,0 +1,4 @@
+-- 修复 synced_adoptions.status 字段长度
+-- 1.0 planting_orders.status 是 VARCHAR(30)，需要匹配
+
+ALTER TABLE "synced_adoptions" ALTER COLUMN "status" TYPE VARCHAR(30);
diff --git a/backend/services/contribution-service/prisma/schema.prisma b/backend/services/contribution-service/prisma/schema.prisma
index 737f0e2d..3286010a 100644
--- a/backend/services/contribution-service/prisma/schema.prisma
+++ b/backend/services/contribution-service/prisma/schema.prisma
@@ -41,7 +41,7 @@ model SyncedAdoption {
   accountSequence    String   @map("account_sequence") @db.VarChar(20)
   treeCount          Int      @map("tree_count")
   adoptionDate       DateTime @map("adoption_date") @db.Date
-  status             String?  @db.VarChar(20)
+  status             String?  @db.VarChar(30) // 与1.0 planting_orders.status保持一致
 
   // 贡献值计算参数（从认种时的配置）
   contributionPerTree Decimal @map("contribution_per_tree") @db.Decimal(20, 10)