diff --git a/payapi-spec/accountapi.yaml b/payapi-spec/accountapi.yaml
index 08c83a0..043f4fd 100644
--- a/payapi-spec/accountapi.yaml
+++ b/payapi-spec/accountapi.yaml
@@ -41,7 +41,7 @@
           title: 子账户列表
           items:
             title: 子账户属性
-            $ref: 'definitions.yaml#/components/schemas/SubAccountMetadata'
+            $ref: 'definitions.yaml#/components/schemas/SubAccountBalance'
     PreAuthorizedDebitRequest:
       type: object
       title: 预授权交易请求
@@ -168,6 +168,79 @@
         realAmount:
           title: 实际扣款金额（分）
           type: integer
+    SubAccountPayRequest:
+      type: object
+      description: 子账户消费接口
+      required:
+        - billno
+        - shopaccno
+        - transDate
+        - transTime
+        - amount
+        - overdraft
+        - accountList
+      properties:
+        billno:
+          $ref: 'definitions.yaml#/components/schemas/Refno'
+        shopaccno:
+          $ref: 'definitions.yaml#/components/schemas/ShopAccNo'
+        transDate:
+          $ref: 'definitions.yaml#/components/schemas/TransDate'
+        transTime:
+          $ref: 'definitions.yaml#/components/schemas/TransTime'
+        userid:
+          title: 用户ID
+          type: string
+        amount:
+          title: 扣款金额(分)
+          type: integer
+        overdraft:
+          type: boolean
+          title: 是否允许主账户透支
+        useMainAccount:
+          type: boolean
+          title: 是否扣款账户
+        accountList:
+          type: array
+          description: 按照账户列表顺序扣款
+          items:
+            type: object
+            description: 扣款账户列表
+            properties:
+              name:
+                type: string
+                title: 账户名
+    SubAccountPayResponse:
+      type: object
+      description: 账户消费应答
+      properties:
+        refno:
+          $ref: 'definitions.yaml#/components/schemas/Refno'
+        hostDate:
+          $ref: 'definitions.yaml#/components/schemas/TransDate'
+        hostTime:
+          $ref: 'definitions.yaml#/components/schemas/TransTime'
+        result:
+          $ref: 'definitions.yaml#/components/schemas/TransResult'
+        description:
+          title: 扣款情况描述
+          type: string
+        accountList:
+          type: array
+          description: 账户扣款情况
+          items:
+            type: object
+            description: 账户结果
+            properties:
+              name:
+                title: 账户名
+                type: string
+              payAmount:
+                title: 扣款金额
+                type: integer
+              aftbal:
+                title: 交易后余额
+                type: integer
 
   paths:
     accountQuery:
@@ -195,7 +268,7 @@
               application/json:
                 schema:
                   $ref: 'definitions.yaml#/components/schemas/ErrorResponse'
-          default:
+          '500':
             $ref: 'definitions.yaml#/components/responses/CommonError'
     accountPay:
       parameters:
@@ -203,6 +276,7 @@
       post:
         tags:
           - pos
+          - pay
         requestBody:
           description: 主账户余额消费
           content:
@@ -225,14 +299,47 @@
               application/json:
                 schema:
                   $ref: 'definitions.yaml#/components/schemas/ErrorResponse'
-          default:
+          '500':
             $ref: 'definitions.yaml#/components/responses/CommonError'
+    subaccPay:
+      parameters:
+        - $ref: definitions.yaml#/components/headers/TenantId
+      post:
+        tags:
+          - pay
+        requestBody:
+          description: |
+            子账户消费, 请求时指定扣款列表，系统安装账户顺序扣款
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/SubAccountPayRequest'
+        responses:
+          '200':
+            description: 扣款成功
+            content:
+              application/json:
+                schema:
+                  $ref: '#/components/schemas/SubAccountPayResponse'
+          '400':
+            description: |
+              扣款失败, code 定义错误信息
+              * short_of_balance 余额不足
+              * account_status_error 账户状态异常
+            content:
+              application/json:
+                schema:
+                  $ref: 'definitions.yaml#/components/schemas/ErrorResponse'
+          '500':
+            $ref: 'definitions.yaml#/components/responses/CommonError'
+
     accountPreAuthorizedDebit:
       parameters:
         - $ref: definitions.yaml#/components/headers/TenantId
       post:
         tags:
           - pos
+          - pay
         requestBody:
           description: 账户预授权交易
           content:
@@ -246,7 +353,7 @@
               application/json:
                 schema:
                   $ref: '#/components/schemas/PreAuthorizedDebitResponse'
-          default:
+          '500':
             $ref: 'definitions.yaml#/components/responses/CommonError'
     accountPreAuthorizedSettle:
       parameters:
@@ -254,6 +361,7 @@
       post:
         tags:
           - pos
+          - pay
         requestBody:
           description: 预授权交易清算
           content:
@@ -267,6 +375,23 @@
               application/json:
                 schema:
                   $ref: '#/components/schemas/PreAuthorizedSettleResponse'
-          default:
+          '500':
+            $ref: 'definitions.yaml#/components/responses/CommonError'
+    querySubAccountMetadata:
+      parameters:
+        - $ref: definitions.yaml#/components/headers/TenantId
+      get:
+        tags:
+          - sa
+        responses:
+          '200':
+            description: 子账户元数据信息
+            content:
+              application/json:
+                schema:
+                  type: array
+                  items:
+                    $ref: 'definitions.yaml#/components/schemas/SubAccountMetadata'
+          '500':
             $ref: 'definitions.yaml#/components/responses/CommonError'
 
diff --git a/payapi-spec/build.gradle b/payapi-spec/build.gradle
index 57f22e8..7d09e45 100644
--- a/payapi-spec/build.gradle
+++ b/payapi-spec/build.gradle
@@ -36,7 +36,7 @@
     ]
 
     systemProperties = [
-            "hideGenerationTimestamp": true
+            "hideGenerationTimestamp": "true"
     ]
 }
 
@@ -54,5 +54,3 @@
     }
     into "$rootProject.projectDir/payapi-common/src/main/java/com/supwisdom/dlpay/payapi/model"
 }
-
-//copySrc.dependsOn openApiGenerate
\ No newline at end of file
diff --git a/payapi-spec/consumeapi.yaml b/payapi-spec/consumeapi.yaml
index a9b91b9..b58bf96 100644
--- a/payapi-spec/consumeapi.yaml
+++ b/payapi-spec/consumeapi.yaml
@@ -149,7 +149,7 @@
               application/json:
                 schema:
                   $ref: '#/components/schemas/QrcodePayInitResponse'
-          default:
+          '500':
             $ref: 'definitions.yaml#/components/responses/CommonError'
     qrcodePayConfirm:
       parameters:
@@ -177,7 +177,7 @@
               application/json:
                 schema:
                   $ref: 'definitions.yaml#/components/schemas/ErrorResponse'
-          default:
+          '500':
             $ref: 'definitions.yaml#/components/responses/CommonError'
     qrcodePayQuery:
       parameters:
@@ -201,7 +201,7 @@
               application/json:
                 schema:
                   $ref: '#/components/schemas/QrcodePayConfirmResponse'
-          default:
+          '500':
             $ref: 'definitions.yaml#/components/responses/CommonError'
     refund:
       parameters:
@@ -230,7 +230,7 @@
               application/json:
                 schema:
                   $ref: 'definitions.yaml#/components/schemas/ErrorResponse'
-          default:
+          '500':
             $ref: 'definitions.yaml#/components/responses/CommonError'
     refundQuery:
       parameters:
@@ -260,5 +260,5 @@
               application/json:
                 schema:
                   $ref: 'definitions.yaml#/components/schemas/ErrorResponse'
-          default:
+          '500':
             $ref: 'definitions.yaml#/components/responses/CommonError'
diff --git a/payapi-spec/definitions.yaml b/payapi-spec/definitions.yaml
index ed1adb4..a72bb54 100644
--- a/payapi-spec/definitions.yaml
+++ b/payapi-spec/definitions.yaml
@@ -82,7 +82,7 @@
         - canceled
         - closed
         - notexists
-    SubAccountMetadata:
+    SubAccountBalance:
       type: object
       required:
         - name
@@ -94,6 +94,9 @@
         status:
           title: 子账户状态
           $ref: '#/components/schemas/UserStatus'
+        offline:
+          type: boolean
+          title: 是否允许脱机使用
         balance:
           type: integer
           title: 子账户余额
@@ -101,3 +104,18 @@
           type: string
           title: 余额有效期
           format: date-time
+    SubAccountMetadata:
+      type: object
+      properties:
+        name:
+          type: string
+          title: 账户名
+        title:
+          type: string
+          title: 账户类型
+        description:
+          type: string
+          title: 账户描述
+        offline:
+          type: boolean
+          title: 是否可以脱机使用
diff --git a/payapi-spec/payapi-spec.yaml b/payapi-spec/payapi-spec.yaml
index b00d7ed..91197ef 100644
--- a/payapi-spec/payapi-spec.yaml
+++ b/payapi-spec/payapi-spec.yaml
@@ -17,9 +17,13 @@
     $ref: consumeapi.yaml#/components/paths/refundQuery
   /account/query:
     $ref: accountapi.yaml#/components/paths/accountQuery
-  /account/apy:
+  /account/pay:
     $ref: accountapi.yaml#/components/paths/accountPay
+  /account/subaccPay:
+    $ref: accountapi.yaml#/components/paths/subaccPay
   /account/preAuthorizedDebit:
     $ref: accountapi.yaml#/components/paths/accountPreAuthorizedDebit
   /account/preAuthorizedSettle:
     $ref: accountapi.yaml#/components/paths/accountPreAuthorizedSettle
+  /account/subaccountMetadata:
+    $ref: accountapi.yaml#/components/paths/querySubAccountMetadata