主要介绍了流动重力历史资料清理流程、方法及获得的规范化成果，在此基础上对1998年泾阳Ms4.8、2009年高陵Ms4.4地震前后的重力场变化进行了初步分析，得到一些结论：（1）泾阳地震前后重力场变化满足“震前重力持续增强-震后反向恢复”的特征；（2）泾阳地震的发生可能与附近断裂活动有关，同时受华北块体应力场的作用；（3）高陵地震前后重力变化与泾阳地震前后重力变化具有一定的相似性，且位于渭河断裂附近，两个地震都受到渭河断裂活动的影响。

Mainly introduces the cleaning process and the method of the repeated gravity historical data , and obtains the standardized gravity results. On this basis , preliminary analyses the gravity field variation before and after the 1998 Jingyang Ms4.8 earthquake and the 2009 Gaoling Ms4.4 earthquake, then some conclusions are obtained：(1) the gravity variation before and after the Jingyang earthquake accord with the feature that the gravity continuous enhancement before the earthquake and reverse recovery then;(2) Jingyang earthquake rupture may occur with nearby fault activities, as well as by the North China block stress field; (3) the gravity variation before and after the Gaoling earthquake is similar with the Jingyang earthquake , two earthquakes are Occurred in the Weihe fault,which are affected by the impact of the Weihe fault activity.