diff --git a/app/adminapi/logic/contract/SubcontractingContractNegotiationLogic.php b/app/adminapi/logic/contract/SubcontractingContractNegotiationLogic.php
index 65e390a1a..c002f14a3 100644
--- a/app/adminapi/logic/contract/SubcontractingContractNegotiationLogic.php
+++ b/app/adminapi/logic/contract/SubcontractingContractNegotiationLogic.php
@@ -55,8 +55,8 @@ class SubcontractingContractNegotiationLogic extends BaseLogic
                 'warranty_expire_date' => !empty($params['Warranty_expire_date']) ? strtotime($params['Warranty_expire_date']) : 0,
                 'negotiation_content' => $params['negotiation_content'] ?? '',
                 'negotiation_detail' => $params['negotiation_detail'] ?? '',
-                'negotiation_quotation' => !empty($params['negotiation_quotation']) ? $params['negotiation_quotation'] : null,
-                'negotiation_basis' => !empty($params['negotiation_basis']) ? $params['negotiation_basis'] : null,
+	            'negotiation_quotation' => $params['negotiation_quotation'] ? json_encode($params['negotiation_quotation']) : null,
+	            'negotiation_basis' => $params['negotiation_basis'] ? json_encode($params['negotiation_basis']) : null,
             ]);
             Db::commit();
             return true;