diff --git a/jero-boot-incoming-payment/src/main/java/com/jero/mail/entity/PayMailBill.java b/jero-boot-incoming-payment/src/main/java/com/jero/mail/entity/PayMailBill.java
index 950db141..0c063d56 100644
--- a/jero-boot-incoming-payment/src/main/java/com/jero/mail/entity/PayMailBill.java
+++ b/jero-boot-incoming-payment/src/main/java/com/jero/mail/entity/PayMailBill.java
@@ -71,6 +71,7 @@ public class PayMailBill implements Serializable {
     @ApiModelProperty(value = "开票金额")
     @NotNull(message = "开票金额不能为空")
     @DecimalMax(value = "9999999999.99", message = "开票金额格式错误")
+    @JsonFormat(shape = JsonFormat.Shape.STRING)
     private BigDecimal invoiceAmount;
 	/**邮寄状态(0:未邮寄，1::已邮寄)*/
     @Dict(dicCode = "mail_type")
@@ -134,10 +135,6 @@ public class PayMailBill implements Serializable {
     @ApiModelProperty(value = "项目id")
     private String projectId;
 
-    @TableField(exist = false)
-    @ApiModelProperty(value = "开票金额")
-    private String invoiceAmountString;
-
     @ApiModelProperty(value = "邮寄人")
     private String mailer;
 
diff --git a/jero-boot-incoming-payment/src/main/java/com/jero/mail/mapper/xml/PayMailBillMapper.xml b/jero-boot-incoming-payment/src/main/java/com/jero/mail/mapper/xml/PayMailBillMapper.xml
index d7cb1429..dd80a221 100644
--- a/jero-boot-incoming-payment/src/main/java/com/jero/mail/mapper/xml/PayMailBillMapper.xml
+++ b/jero-boot-incoming-payment/src/main/java/com/jero/mail/mapper/xml/PayMailBillMapper.xml
@@ -61,7 +61,7 @@
        SELECT pmb.id,
        project_name as projectName,
        bill_no AS billNo,
-       pmb.invoice_amount as invoiceAmountString,
+       pmb.invoice_amount as invoiceAmount,
        principal_name as principalName,
        charge_company_name as chargeCompanyName,
         contact_name as contactName,