Abstract:We calculate the deformation and strain characteristics of Hubei province by interpolation method based on 1998 to 2018 GPS observation data of the crustal motion observation network in China. The results reveal that the movement of the block in Hubei province is stable and without obvious deformation gradient zones. The direction of horizontal movement is east to slightly south, the speed value is between 5 mm/a and 9 mm/a with 6.2 mm/a average. The average of vertical velocity field is -0.96 mm/a, mainly sinking. The superficial expansivity shows that there are 4 high value zones of surface expansion and 4 high value zones of surface extrusion in Hubei province. The maximum shear strain rate field shows there is a high value annular zone in middle Hubei province. The distribution of historical earthquakes in Hubei province shows that earthquakes mainly occur in the edge zone of high-value stress and strain area. Small earthquakes often occur in Badong and Zigui regions, which have a certain relationship with the repeated loading and unloading of water level in the Three Gorges reservoir, and it has no obvious feature which correspond to GPS deformation and strain characteristics.