We collected the gravity observation data of Hebei Province and its neighboring regions(110°~120°E,36°~42°N) from 2010 to 2014,and used multi-scale wavelet decomposition to get data at different scales and depth. Combined with the case of earthquakes in this period,we have a clearer understanding of the gravity changes and abnormal characteristics in the study area. The conclusions can provide some reference for the subsequent seismic situation analysis and judgment in Hebei Province and its neighboring regions.