diff --git a/backend/services/planting-service/src/pre-planting/infrastructure/external/pre-planting-referral.client.ts b/backend/services/planting-service/src/pre-planting/infrastructure/external/pre-planting-referral.client.ts
index fe728df1..451eb0e4 100644
--- a/backend/services/planting-service/src/pre-planting/infrastructure/external/pre-planting-referral.client.ts
+++ b/backend/services/planting-service/src/pre-planting/infrastructure/external/pre-planting-referral.client.ts
@@ -37,14 +37,18 @@ export class PrePlantingReferralClient {
       );
       return response.data;
     } catch (error) {
+      // 404 = 用户无推荐关系，属于正常情况（如测试账号、直接注册用户）
+      // 返回空推荐链而非抛错，避免阻断购买流程
+      if (error?.response?.status === 404) {
+        this.logger.warn(
+          `No referral chain found for ${accountSequence}, proceeding without referrer`,
+        );
+        return { accountSequence, directReferrer: null };
+      }
       this.logger.error(
         `Failed to get referral chain for ${accountSequence}`,
         error,
       );
-      if (this.configService.get('NODE_ENV') === 'development') {
-        this.logger.warn('Development mode: returning empty referral chain');
-        return { accountSequence, directReferrer: null };
-      }
       throw error;
     }
   }