diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/PayApi.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/PayApi.java
index 5106276e..ada206a9 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/PayApi.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/api/PayApi.java
@@ -465,8 +465,8 @@ public class PayApi extends MchApi {
 		try {
 			Map<String, String> map = createBaseRequestMap(idQuery);
 			map.put("out_refund_no", outRefundNo);
-			map.put("total_fee", DateUtil.formaFee2Fen(totalFee));
-			map.put("refund_fee", DateUtil.formaFee2Fen(refundFee));
+			map.put("total_fee", DateUtil.formatFee2Fen(totalFee));
+			map.put("refund_fee", DateUtil.formatFee2Fen(refundFee));
 			if (StringUtil.isBlank(opUserId)) {
 				opUserId = weixinAccount.getMchId();
 			}
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/PayPackage.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/PayPackage.java
index e0469ccd..e8041b5f 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/PayPackage.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/PayPackage.java
@@ -117,7 +117,7 @@ public class PayPackage extends MerchantResult {
 		this.body = body;
 		this.detail = detail;
 		this.outTradeNo = outTradeNo;
-		this.totalFee = DateUtil.formaFee2Fen(totalFee);
+		this.totalFee = DateUtil.formatFee2Fen(totalFee);
 		this.notifyUrl = notifyUrl;
 		this.createIp = createIp;
 		this.attach = attach;
@@ -163,7 +163,7 @@ public class PayPackage extends MerchantResult {
 	 *            订单总额 单位为元
 	 */
 	public void setTotalFee(double totalFee) {
-		this.totalFee = DateUtil.formaFee2Fen(totalFee);
+		this.totalFee = DateUtil.formatFee2Fen(totalFee);
 	}
 
 	public String getNotifyUrl() {
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/mch/CorpPayment.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/mch/CorpPayment.java
index 72912772..2f35dfab 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/mch/CorpPayment.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/mch/CorpPayment.java
@@ -91,7 +91,7 @@ public class CorpPayment extends MerchantResult {
 		this.openId = openId;
 		this.checkNameType = checkNameType;
 		this.desc = desc;
-		this.amount = DateUtil.formaFee2Fen(amount);
+		this.amount = DateUtil.formatFee2Fen(amount);
 		this.clientIp = clientIp;
 	}
 
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/mch/Redpacket.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/mch/Redpacket.java
index acbdd645..f49d592c 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/mch/Redpacket.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/payment/mch/Redpacket.java
@@ -134,7 +134,7 @@ public class Redpacket extends MerchantResult {
 		this.clientIp = clientIp;
 		this.actName = actName;
 		this.remark = remark;
-		this.totalAmount = DateUtil.formaFee2Fen(totalAmount);
+		this.totalAmount = DateUtil.formatFee2Fen(totalAmount);
 		this.amtType = totalNum > 1 ? "ALL_RAND" : null;
 	}
 
diff --git a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/util/DateUtil.java b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/util/DateUtil.java
index 61464544..49bfd1e6 100644
--- a/weixin4j-base/src/main/java/com/foxinmy/weixin4j/util/DateUtil.java
+++ b/weixin4j-base/src/main/java/com/foxinmy/weixin4j/util/DateUtil.java
@@ -1,5 +1,6 @@
 package com.foxinmy.weixin4j.util;
 
+import java.math.BigDecimal;
 import java.text.DecimalFormat;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
@@ -73,10 +74,13 @@ public class DateUtil {
 	 * 
 	 * @param fee
 	 *            金额 单位为分
-	 * @return
+	 * @return 四舍五入后的字符串形式金额
 	 */
-	public static String formaFee2Fen(double fee) {
-		return new DecimalFormat("#").format(fee * 100);
+	public static String formatFee2Fen(double fee) {
+		BigDecimal _fee = new BigDecimal(Double.toString(fee));
+		fee = _fee.multiply(new BigDecimal("100"))
+				.setScale(2, BigDecimal.ROUND_HALF_UP).doubleValue();
+		return new DecimalFormat("#").format(fee);
 	}
 
 	/**
diff --git a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/PayOldApi.java b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/PayOldApi.java
index e0847c6d..3b5120e9 100644
--- a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/PayOldApi.java
+++ b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/api/PayOldApi.java
@@ -261,8 +261,8 @@ public class PayOldApi extends MpApi {
 			map.put("service_version", "1.1");
 			map.put("partner", weixinAccount.getPartnerId());
 			map.put("out_refund_no", outRefundNo);
-			map.put("total_fee", DateUtil.formaFee2Fen(totalFee));
-			map.put("refund_fee", DateUtil.formaFee2Fen(refundFee));
+			map.put("total_fee", DateUtil.formatFee2Fen(totalFee));
+			map.put("refund_fee", DateUtil.formatFee2Fen(refundFee));
 			map.put(idQuery.getType().getName(), idQuery.getId());
 			if (StringUtil.isBlank(opUserId)) {
 				opUserId = weixinAccount.getPartnerId();
diff --git a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/oldpayment/PayPackageV2.java b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/oldpayment/PayPackageV2.java
index 5e88e4bb..5693ac34 100644
--- a/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/oldpayment/PayPackageV2.java
+++ b/weixin4j-mp/src/main/java/com/foxinmy/weixin4j/mp/oldpayment/PayPackageV2.java
@@ -133,8 +133,8 @@ public class PayPackageV2 extends PayPackage {
 		this.inputCharset = "UTF-8";
 		this.partner = partner;
 		this.transportFee = transportFee > 0d ? DateUtil
-				.formaFee2Fen(transportFee) : null;
-		this.productFee = productFee > 0 ? DateUtil.formaFee2Fen(productFee)
+				.formatFee2Fen(transportFee) : null;
+		this.productFee = productFee > 0 ? DateUtil.formatFee2Fen(productFee)
 				: null;
 	}
 
@@ -165,7 +165,7 @@ public class PayPackageV2 extends PayPackage {
 	 *            物流费用 单位为元
 	 */
 	public void setTransportFee(double transportFee) {
-		this.transportFee = DateUtil.formaFee2Fen(transportFee);
+		this.transportFee = DateUtil.formatFee2Fen(transportFee);
 	}
 
 	public String getProductFee() {
@@ -179,7 +179,7 @@ public class PayPackageV2 extends PayPackage {
 	 *            商品 单位为元
 	 */
 	public void setProductFee(double productFee) {
-		this.productFee = DateUtil.formaFee2Fen(productFee);
+		this.productFee = DateUtil.formatFee2Fen(productFee);
 	}
 
 	public String getInputCharset() {