diff --git a/internal/application/certification/certification_application_service_impl.go b/internal/application/certification/certification_application_service_impl.go
index 0e90009..ba61454 100644
--- a/internal/application/certification/certification_application_service_impl.go
+++ b/internal/application/certification/certification_application_service_impl.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io"
 	"net/http"
+	"strings"
 	"time"
 
 	"tyapi-server/internal/application/certification/dto/commands"
@@ -265,8 +266,7 @@ func (s *CertificationApplicationServiceImpl) SubmitEnterpriseInfo(
 		// 4. 提交企业信息：暂时跳过人工审核，直接进入「已提交」状态（第三步企业认证）
 		// 恢复人工审核时改为 cert.SubmitEnterpriseInfoForReview(enterpriseInfo)，并将 next_action 改为「请等待管理员审核企业信息」
 
-		// 生成企业认证链接
-		authURL, err := s.esignClient.GenerateEnterpriseAuth(&esign.EnterpriseAuthRequest{
+		authReq := &esign.EnterpriseAuthRequest{
 			CompanyName:       enterpriseInfo.CompanyName,
 			UnifiedSocialCode: enterpriseInfo.UnifiedSocialCode,
 			LegalPersonName:   enterpriseInfo.LegalPersonName,
@@ -274,19 +274,28 @@ func (s *CertificationApplicationServiceImpl) SubmitEnterpriseInfo(
 			TransactorName:    enterpriseInfo.LegalPersonName,
 			TransactorMobile:  enterpriseInfo.LegalPersonPhone,
 			TransactorID:      enterpriseInfo.LegalPersonID,
-		})
+		}
+		authURL, alreadyVerified, err := s.generateEnterpriseAuthOrDetectVerified(txCtx, authReq)
 		if err != nil {
 			return fmt.Errorf("生成企业认证链接失败: %w", err)
 		}
-
-		err = cert.SubmitEnterpriseInfo(enterpriseInfo, authURL.AuthShortURL, authURL.AuthFlowID)
-		if err != nil {
-			return fmt.Errorf("提交企业信息失败: %s", err.Error())
-		}
-
-		err = s.aggregateService.SaveCertification(txCtx, cert)
-		if err != nil {
-			return fmt.Errorf("保存认证信息失败: %s", err.Error())
+		if alreadyVerified {
+			// 三方侧已实名：先进入 info_submitted，再在同事务内自动推进到 enterprise_verified。
+			if err = cert.SubmitEnterpriseInfo(enterpriseInfo, "", ""); err != nil {
+				return fmt.Errorf("提交企业信息失败: %s", err.Error())
+			}
+			if err = s.completeEnterpriseVerification(txCtx, cert, cert.UserID, enterpriseInfo.CompanyName, enterpriseInfo.LegalPersonName); err != nil {
+				return fmt.Errorf("自动完成企业认证失败: %w", err)
+			}
+		} else {
+			err = cert.SubmitEnterpriseInfo(enterpriseInfo, authURL.AuthShortURL, authURL.AuthFlowID)
+			if err != nil {
+				return fmt.Errorf("提交企业信息失败: %s", err.Error())
+			}
+			err = s.aggregateService.SaveCertification(txCtx, cert)
+			if err != nil {
+				return fmt.Errorf("保存认证信息失败: %s", err.Error())
+			}
 		}
 
 		// 5. 提交记录与认证状态在同一事务内保存
@@ -296,13 +305,22 @@ func (s *CertificationApplicationServiceImpl) SubmitEnterpriseInfo(
 
 		respMeta := map[string]interface{}{
 			"enterprise_info": enterpriseInfo,
-			"next_action":     "请完成企业认证",
+			"polling": map[string]interface{}{
+				"enabled":          !alreadyVerified,
+				"endpoint":         "/api/v1/certifications/confirm-auth",
+				"interval_seconds": 3,
+			},
+		}
+		if alreadyVerified {
+			respMeta["next_action"] = "企业已实名，已自动完成认证，可进入合同签署"
+			respMeta["target_view"] = "contract_sign"
+		} else {
+			respMeta["next_action"] = "请完成企业认证"
+			respMeta["target_view"] = "enterprise_auth"
 		}
 		// 6. 转换为响应 DTO
 		response = s.convertToResponse(cert)
-		if respMeta != nil {
-			response.Metadata = respMeta
-		}
+		response.Metadata = respMeta
 		return nil
 	})
 	if err != nil {
@@ -875,7 +893,7 @@ func (s *CertificationApplicationServiceImpl) AdminApproveSubmitRecord(ctx conte
 		LegalPersonPhone:  record.LegalPersonPhone,
 		EnterpriseAddress: record.EnterpriseAddress,
 	}
-	authURL, err := s.esignClient.GenerateEnterpriseAuth(&esign.EnterpriseAuthRequest{
+	authReq := &esign.EnterpriseAuthRequest{
 		CompanyName:       enterpriseInfo.CompanyName,
 		UnifiedSocialCode: enterpriseInfo.UnifiedSocialCode,
 		LegalPersonName:   enterpriseInfo.LegalPersonName,
@@ -883,10 +901,17 @@ func (s *CertificationApplicationServiceImpl) AdminApproveSubmitRecord(ctx conte
 		TransactorName:    enterpriseInfo.LegalPersonName,
 		TransactorMobile:  enterpriseInfo.LegalPersonPhone,
 		TransactorID:      enterpriseInfo.LegalPersonID,
-	})
+	}
+	authURL, alreadyVerified, err := s.generateEnterpriseAuthOrDetectVerified(ctx, authReq)
 	if err != nil {
 		return fmt.Errorf("生成企业认证链接失败: %w", err)
 	}
+	if alreadyVerified {
+		if err := cert.ApproveEnterpriseInfoReview("", "", adminID); err != nil {
+			return fmt.Errorf("更新认证状态失败: %w", err)
+		}
+		return s.completeEnterpriseVerification(ctx, cert, cert.UserID, record.CompanyName, record.LegalPersonName)
+	}
 	if err := cert.ApproveEnterpriseInfoReview(authURL.AuthShortURL, authURL.AuthFlowID, adminID); err != nil {
 		return fmt.Errorf("更新认证状态失败: %w", err)
 	}
@@ -964,14 +989,21 @@ func (s *CertificationApplicationServiceImpl) AdminTransitionCertificationStatus
 			LegalPersonName: record.LegalPersonName, LegalPersonID: record.LegalPersonID,
 			LegalPersonPhone: record.LegalPersonPhone, EnterpriseAddress: record.EnterpriseAddress,
 		}
-		authURL, err := s.esignClient.GenerateEnterpriseAuth(&esign.EnterpriseAuthRequest{
+		authReq := &esign.EnterpriseAuthRequest{
 			CompanyName: enterpriseInfo.CompanyName, UnifiedSocialCode: enterpriseInfo.UnifiedSocialCode,
 			LegalPersonName: enterpriseInfo.LegalPersonName, LegalPersonID: enterpriseInfo.LegalPersonID,
 			TransactorName: enterpriseInfo.LegalPersonName, TransactorMobile: enterpriseInfo.LegalPersonPhone, TransactorID: enterpriseInfo.LegalPersonID,
-		})
+		}
+		authURL, alreadyVerified, err := s.generateEnterpriseAuthOrDetectVerified(ctx, authReq)
 		if err != nil {
 			return fmt.Errorf("生成企业认证链接失败: %w", err)
 		}
+		if alreadyVerified {
+			if err := cert.ApproveEnterpriseInfoReview("", "", cmd.AdminID); err != nil {
+				return fmt.Errorf("更新认证状态失败: %w", err)
+			}
+			return s.completeEnterpriseVerification(ctx, cert, cert.UserID, record.CompanyName, record.LegalPersonName)
+		}
 		if err := cert.ApproveEnterpriseInfoReview(authURL.AuthShortURL, authURL.AuthFlowID, cmd.AdminID); err != nil {
 			return fmt.Errorf("更新认证状态失败: %w", err)
 		}
@@ -1049,6 +1081,49 @@ func (s *CertificationApplicationServiceImpl) convertToResponse(cert *entities.C
 	return response
 }
 
+func (s *CertificationApplicationServiceImpl) generateEnterpriseAuthOrDetectVerified(
+	ctx context.Context,
+	req *esign.EnterpriseAuthRequest,
+) (*esign.EnterpriseAuthResult, bool, error) {
+	authURL, err := s.esignClient.GenerateEnterpriseAuth(req)
+	if err == nil {
+		return authURL, false, nil
+	}
+	if !isEnterpriseAlreadyRealnamedErr(err) {
+		return nil, false, err
+	}
+
+	s.logger.Warn("企业已实名，跳过生成认证链接并转为自动确认",
+		zap.String("company_name", req.CompanyName),
+		zap.String("unified_social_code", req.UnifiedSocialCode),
+		zap.Error(err))
+
+	identity, identityErr := s.esignClient.QueryOrgIdentityInfo(&esign.QueryOrgIdentityRequest{
+		OrgIDCardNum:  req.UnifiedSocialCode,
+		OrgIDCardType: esign.OrgIDCardTypeUSCC,
+	})
+	if identityErr != nil {
+		identity, identityErr = s.esignClient.QueryOrgIdentityInfo(&esign.QueryOrgIdentityRequest{
+			OrgName: req.CompanyName,
+		})
+	}
+	if identityErr != nil {
+		return nil, false, fmt.Errorf("企业用户已实名，但查询实名状态失败: %w", identityErr)
+	}
+	if identity == nil || identity.Data.RealnameStatus != 1 {
+		return nil, false, err
+	}
+	return nil, true, nil
+}
+
+func isEnterpriseAlreadyRealnamedErr(err error) bool {
+	if err == nil {
+		return false
+	}
+	msg := err.Error()
+	return strings.Contains(msg, "企业用户已实名") || strings.Contains(msg, "已实名")
+}
+
 // validateApplyContractCommand 验证申请合同命令
 func (s *CertificationApplicationServiceImpl) validateApplyContractCommand(cmd *commands.ApplyContractCommand) error {
 	if cmd.UserID == "" {