Abstract: Petroleum production will lead the reservoir compression, and then causes surface subsidence.The surface subsidence caused by oil exploitation is slow and the dynamic monitoring of large area cannot be realized by the conventional geodetic monitoring technology.Therefore, according to the oil-field surface subsidence process, the 33 ascending Sentinel-1A SAR data and PS-InSAR technique are selected to monitor the oilfield surface subsidence in this paper.It obtains the surface subsidence in the area from March 2017 to November 2019, and that analyses the subsidence evolution process within the monitoring period.The results illustrate that the oil-field subsidence area is 29.5 km², the maximum subsidence speed is -210.9 mm/a, and the maximum subsidence is -585.6 mm.Finally, according to the theory of surface subsidence, the calculation model of surface subsidence and deformation in this area is established by using the method of parameter inverse analysis.According to the inversion model, the maximum surface tilt is 0.47 mm/m, the maximum horizontal stretching is 0.42 mm/m, and the maximum compression deformation is -0.34 mm/m respectively, which will provide a basis for mining damage assessment.