In order to investigate the application of linear phase retrieval sensor in the adaptive optics system,an experiment adaptive optics system was established based on the linear phase retrieval method. The close-loop compensation ability to the dynamic aberrations was investigated and validated by using a 19- element deformable mirror. During the experiment,it was needed to calibrate the system aberration produced by the deformable mirror first and keep its image. And then the voltage of drivers can be retrieved by utilizing the different images between the actual image and calibrated image. Finally,the unknown aberration can be corrected by controlling the deformable mirror. The results indicated that the system can correct certain size aberrations,and it had a fine compensation effect. The adaptive optics system based on the linear phase retrieval method is excellent with simple structure,low calculation cost and high speed.