Irregular vibration of high-speed spacecraft flight will bring negative influences to the star sensor imaging process installed in strapdown mode. Aiming at improving the quality of star sensor images and compensating the distortion caused by irregular vibration

point spread function（ PSF） theory is adopted to describe the motion imaging process

and influence of vibration on the star sensor imaging is analyzed from the perspective of imaging process

after which different simulation maps under the influence of multiple forms of vibrations are obtained. The results show that the star sensor imaging process is affected by environment vibration

which result in smearing

diffusion

rotation and other phenomenon and provide reference for star sensor seismic design and star image recognition.