diff --git a/src/com/nis/systeminfo/model/SystemInfo.java b/src/com/nis/systeminfo/model/SystemInfo.java
index c628971..690dc72 100644
--- a/src/com/nis/systeminfo/model/SystemInfo.java
+++ b/src/com/nis/systeminfo/model/SystemInfo.java
@@ -200,7 +200,8 @@ public class SystemInfo
 			sb.append(SEPARATOR);
 			sb.append(doubleFormat(memFree / (1024 * 1024 * 1024.0), 2));// 当前内存剩余量,单位："G"
 			sb.append(SEPARATOR);
-			sb.append(doubleFormat(((memTotal - memFree) * 100.0) / memTotal, 1));// 内存使用率
+			sb.append(doubleFormat(mem.getUsedPercent(), 1));// 内存使用率
+//			sb.append(doubleFormat(((memTotal - memFree) * 100.0) / memTotal, 1));// 内存使用率
 			
 			StringBuffer sb2 = new StringBuffer();
 //			sb2.append("内存总大小: " + doubleFormat(memTotal / (1024 * 1024 * 1024.0), 2) + "G, 现使用："
@@ -210,7 +211,7 @@ public class SystemInfo
 			sb2.append("i18n_client.SystemInfo.memerySize_n81i: " + doubleFormat(memTotal / (1024 * 1024 * 1024.0), 2) + "G, i18n_client.SystemInfo.currentUsed_n81i："
 					+ doubleFormat(memUsed / (1024 * 1024 * 1024.0), 2) + "G, i18n_client.SystemInfo.spaceRemain_n81i：" 
 					+ doubleFormat(memFree / (1024 * 1024 * 1024.0), 2) + "G, i18n_client.SystemInfo.shiyonglv_n81i："
-					+ doubleFormat(((memTotal - memFree) * 100.0) / memTotal, 1) + "%");
+					+ doubleFormat(mem.getUsedPercent(), 1) + "%");
 			
 			detectInfo.getDetailDatas().add(sb.toString());
 			detectInfo.setDescInfo(sb2.toString());