diff --git a/app/http/controllers/merchant/merchant.go b/app/http/controllers/merchant/merchant.go
index e5fd52c..7da9566 100644
--- a/app/http/controllers/merchant/merchant.go
+++ b/app/http/controllers/merchant/merchant.go
@@ -98,8 +98,8 @@ func Create(c *gin.Context) {
 	}
 
 	merchant := &merMod.Merchant{
-		Name: request.Name,
-		Key: request.Key,
+		Name:       request.Name,
+		PrivateKey: request.PrivateKey,
 	}
 
 	affected, err := merServ.Create(merchant)
@@ -124,9 +124,9 @@ func Update(c *gin.Context) {
 	}
 
 	merchant := &merMod.Merchant{
-		Id:   request.Id,
-		Name: request.Name,
-		Key: request.Key,
+		Id:         request.Id,
+		Name:       request.Name,
+		PrivateKey: request.PrivateKey,
 	}
 
 	affected, err := merServ.Update(merchant)
diff --git a/app/http/entities/merchant/merchant.go b/app/http/entities/merchant/merchant.go
index 85d4727..ab5b70c 100644
--- a/app/http/entities/merchant/merchant.go
+++ b/app/http/entities/merchant/merchant.go
@@ -25,8 +25,8 @@ type SearchResp struct {
 }
 
 type CreateReq struct {
-	Name string `json:"name" validate:"required"`
-	Key  string `json:"key" validate:"required"`
+	Name       string `json:"name" validate:"required"`
+	PrivateKey string `json:"private_key" validate:"required"`
 }
 
 type CreateResp struct {
@@ -34,9 +34,9 @@ type CreateResp struct {
 }
 
 type UpdateReq struct {
-	Id   int64  `json:"id" validate:"required"`
-	Name string `json:"name"`
-	Key  string `json:"key"`
+	Id         int64  `json:"id" validate:"required"`
+	Name       string `json:"name"`
+	PrivateKey string `json:"private_key"`
 }
 
 type UpdateResp struct {
diff --git a/app/http/middlewares/sign_verify.go b/app/http/middlewares/sign_verify.go
index 3005cb2..6a17550 100644
--- a/app/http/middlewares/sign_verify.go
+++ b/app/http/middlewares/sign_verify.go
@@ -81,7 +81,7 @@ func VerifySign() gin.HandlerFunc {
 			return
 		}
 		//验证签名是否正确
-		hash := GenMD5Sign(data, merchant.Key)
+		hash := GenMD5Sign(data, merchant.PrivateKey)
 		logger.Info(c, "Sign", hash)
 		if hash != data["sign"] {
 			common.Error(c, 400, "签名错误")
diff --git a/app/models/merchant/merchant.go b/app/models/merchant/merchant.go
index c9f0e1c..cd6a042 100644
--- a/app/models/merchant/merchant.go
+++ b/app/models/merchant/merchant.go
@@ -16,10 +16,10 @@ var (
  * Merchant
  */
 type Merchant struct {
-	Id        int64 `xorm:"pk autoincr"` //注：使用getOne 或者ID() 需要设置主键
-	Name      string
-	Key       string
-	CreatedAt time.Time `xorm:"created"`
+	Id         int64 `xorm:"pk autoincr"` //注：使用getOne 或者ID() 需要设置主键
+	Name       string
+	PrivateKey string
+	CreatedAt  time.Time `xorm:"created"`
 }
 
 /**
diff --git a/build/sql/db.sql b/build/sql/db.sql
index db69e67..d8f0c82 100644
--- a/build/sql/db.sql
+++ b/build/sql/db.sql
@@ -1,7 +1,7 @@
 create table merchant (
     id int primary key auto_increment,
     name varchar(255) not null,
-    key varchar(255),
+    private_key varchar(255),
     created_at timestamp default current_timestamp
 );
 
@@ -20,7 +20,7 @@ create table orders (
 
     status tinyint,
     transfer_status tinyint,
-    created_at timestamp default current_timestamp,
+    created_at timestamp default current_timestamp
 );
 
 create table whitelist (