diff --git a/src/main/java/au/com/royalpay/payment/manage/application/core/impls/SimpleClientApplyServiceImpl.java b/src/main/java/au/com/royalpay/payment/manage/application/core/impls/SimpleClientApplyServiceImpl.java
index 9d5ac067f..4b65265e5 100644
--- a/src/main/java/au/com/royalpay/payment/manage/application/core/impls/SimpleClientApplyServiceImpl.java
+++ b/src/main/java/au/com/royalpay/payment/manage/application/core/impls/SimpleClientApplyServiceImpl.java
@@ -793,7 +793,7 @@ public class SimpleClientApplyServiceImpl implements SimpleClientApplyService {
             newConfig.put("rate_value", config.getBigDecimal(rateKey));
             newConfig.put("rate_name", channel);
             if (!clientRateMapper.listClientRatesForSaving(clientId, config.getDate("active_time"), config.getDate("expiry_time"),
-                    config.getDoubleValue("rate_value"), config.getInteger("clean_days"), channel).isEmpty()) {
+                    config.getBigDecimal("rate_value"), config.getInteger("clean_days"), channel).isEmpty()) {
                 return;
             }
             List<JSONObject> existRate = clientRateMapper.listCurrentClientRates(clientId, config.getDate("active_time"), channel);
diff --git a/src/main/java/au/com/royalpay/payment/manage/mappers/system/ClientRateMapper.java b/src/main/java/au/com/royalpay/payment/manage/mappers/system/ClientRateMapper.java
index 7b606adc5..896a60f58 100644
--- a/src/main/java/au/com/royalpay/payment/manage/mappers/system/ClientRateMapper.java
+++ b/src/main/java/au/com/royalpay/payment/manage/mappers/system/ClientRateMapper.java
@@ -1,12 +1,13 @@
 package au.com.royalpay.payment.manage.mappers.system;
 
+import com.alibaba.fastjson.JSONObject;
 import com.yixsoft.support.mybatis.autosql.annotations.AutoMapper;
 import com.yixsoft.support.mybatis.autosql.annotations.AutoSql;
 import com.yixsoft.support.mybatis.autosql.annotations.SqlType;
-import com.alibaba.fastjson.JSONObject;
 import org.apache.ibatis.annotations.Param;
 import org.apache.ibatis.executor.keygen.Jdbc3KeyGenerator;
 
+import java.math.BigDecimal;
 import java.util.Date;
 import java.util.List;
 
@@ -38,7 +39,7 @@ public interface ClientRateMapper {
 
     @AutoSql(SqlType.SELECT)
     List<JSONObject> listClientRatesForSaving(@Param("client_id") int clientId, @Param("active_time") Date activeTime,
-                                              @Param("expiry_time") Date expiryTime, @Param("rate_value") Double rateValue,
+                                              @Param("expiry_time") Date expiryTime, @Param("rate_value") BigDecimal rateValue,
                                               @Param("clean_days") Integer cleanDays, @Param("rate_name") String rateName);
 
 
diff --git a/src/main/java/au/com/royalpay/payment/manage/merchants/beans/ClientRateConfig.java b/src/main/java/au/com/royalpay/payment/manage/merchants/beans/ClientRateConfig.java
index 994dd765f..d3b6f8a97 100644
--- a/src/main/java/au/com/royalpay/payment/manage/merchants/beans/ClientRateConfig.java
+++ b/src/main/java/au/com/royalpay/payment/manage/merchants/beans/ClientRateConfig.java
@@ -7,6 +7,7 @@ import org.apache.commons.lang3.time.DateUtils;
 
 import javax.validation.constraints.NotEmpty;
 import javax.validation.constraints.NotNull;
+import java.math.BigDecimal;
 import java.util.Calendar;
 import java.util.Date;
 
@@ -21,11 +22,11 @@ public class ClientRateConfig {
 
     @JSONField(name = "rate_value")
     @NotNull(message = "error.payment.valid.param_missing")
-    private Double rateValue;
+    private BigDecimal rateValue;
 
     @JSONField(name = "transaction_fee")
     @NotNull(message = "error.payment.valid.param_missing")
-    private Double transactionFee = 0.00;
+    private BigDecimal transactionFee = BigDecimal.ZERO;
 
     @JSONField(name = "active_time")
     @NotNull(message = "error.payment.valid.param_missing")
@@ -53,7 +54,7 @@ public class ClientRateConfig {
         this.rateName = rateName;
     }
 
-    public void setRateValue(Double rateValue) {
+    public void setRateValue(BigDecimal rateValue) {
         this.rateValue = rateValue;
     }
 
@@ -69,7 +70,7 @@ public class ClientRateConfig {
         return rateName;
     }
 
-    public Double getRateValue() {
+    public BigDecimal getRateValue() {
         return rateValue;
     }
 
@@ -97,11 +98,11 @@ public class ClientRateConfig {
         this.remark = remark;
     }
 
-    public Double getTransactionFee() {
+    public BigDecimal getTransactionFee() {
         return transactionFee;
     }
 
-    public void setTransactionFee(Double transactionFee) {
+    public void setTransactionFee(BigDecimal transactionFee) {
         this.transactionFee = transactionFee;
     }
 
diff --git a/src/main/java/au/com/royalpay/payment/manage/merchants/core/impls/ClientManagerImpl.java b/src/main/java/au/com/royalpay/payment/manage/merchants/core/impls/ClientManagerImpl.java
index 6ccd85567..2a93c40ef 100644
--- a/src/main/java/au/com/royalpay/payment/manage/merchants/core/impls/ClientManagerImpl.java
+++ b/src/main/java/au/com/royalpay/payment/manage/merchants/core/impls/ClientManagerImpl.java
@@ -1951,7 +1951,7 @@ public class ClientManagerImpl implements ClientManager, ManagerTodoNoticeProvid
             newConfig.putAll(config);
             newConfig.put("rate_value", config.getBigDecimal(rateKey));
             newConfig.put("rate_name", channel);
-            if (!clientRateMapper.listClientRatesForSaving(clientId, config.getDate("active_time"), config.getDate("expiry_time"), config.getDoubleValue("rate_value"), config.getInteger("clean_days"), channel).isEmpty()) {
+            if (!clientRateMapper.listClientRatesForSaving(clientId, config.getDate("active_time"), config.getDate("expiry_time"), config.getBigDecimal("rate_value"), config.getInteger("clean_days"), channel).isEmpty()) {
                 return;
             }
             List<JSONObject> existRate = clientRateMapper.listCurrentClientRates(clientId, config.getDate("active_time"), channel);
@@ -2005,7 +2005,7 @@ public class ClientManagerImpl implements ClientManager, ManagerTodoNoticeProvid
         if (StringUtils.equalsIgnoreCase("rpaypmt_card", config.getRateName())) {
             JSONObject extParams = configJson.getJSONObject("ext_rates");
 
-            JSONObject domesticRate = subRateObject(new BigDecimal(config.getRateValue()), config.getCleanDays());
+            JSONObject domesticRate = subRateObject(config.getRateValue(), config.getCleanDays());
             extParams.put("domestic_rate_value", domesticRate);
             configJson.put("ext_rates", extParams.toJSONString());
         }
diff --git a/src/main/java/au/com/royalpay/payment/manage/merchants/events/listeners/NewRateEventListener.java b/src/main/java/au/com/royalpay/payment/manage/merchants/events/listeners/NewRateEventListener.java
index 558840b81..dedd73d20 100644
--- a/src/main/java/au/com/royalpay/payment/manage/merchants/events/listeners/NewRateEventListener.java
+++ b/src/main/java/au/com/royalpay/payment/manage/merchants/events/listeners/NewRateEventListener.java
@@ -5,16 +5,14 @@ import au.com.royalpay.payment.manage.merchants.core.ClientConfigService;
 import au.com.royalpay.payment.manage.merchants.core.ClientManager;
 import au.com.royalpay.payment.manage.merchants.events.ClientSignEvent;
 import au.com.royalpay.payment.tools.merchants.core.MerchantInfoProvider;
-
 import com.alibaba.fastjson.JSONObject;
-
 import org.joda.time.DateTime;
 import org.springframework.context.ApplicationListener;
 import org.springframework.stereotype.Component;
 
-import java.util.Date;
-
 import javax.annotation.Resource;
+import java.math.BigDecimal;
+import java.util.Date;
 
 /**
  * Created by yixian on 2017-04-11.
@@ -32,16 +30,16 @@ public class NewRateEventListener implements ApplicationListener<ClientSignEvent
     public void onApplicationEvent(ClientSignEvent event) {
         if (event.getEventId() == 1) {
             JSONObject client = clientManager.getClientInfo(event.getClientId());
-            if(client == null){
+            if (client == null) {
                 return;
             }
             JSONObject clientConfig = clientConfigService.find(event.getClientId());
-            JSONObject currentRate = merchantInfoProvider.clientCurrentRate(event.getClientId(), new Date(),"Wechat");
+            JSONObject currentRate = merchantInfoProvider.clientCurrentRate(event.getClientId(), new Date(), "Wechat");
             ClientRateConfig rate = new ClientRateConfig();
             rate.setActiveTime(new DateTime(2017, 5, 1, 0, 0, 0, 0).toDate());
             rate.setExpiryTime(new DateTime(2018, 5, 1, 0, 0, 0, 0).toDate());
             rate.setCleanDays(currentRate.getInteger("clean_days") == null ? clientConfig.getIntValue("clean_days") : currentRate.getIntValue("clean_days"));
-            rate.setRateValue(Math.min(1.4, currentRate.getDoubleValue("rate_value")));
+            rate.setRateValue(BigDecimal.valueOf(1.4).min(currentRate.getBigDecimal("rate_value")));
             JSONObject mockManager = new JSONObject();
             mockManager.put("manager_id", 0);
             mockManager.put("display_name", "System");