In view of the aberration of optical systems,a wave aberration correction method based on liquid crystal spatial light modulator is proposed.As to infinity imaging(parallel light),digital wave-front phase-shifting interferometer is used for accurately measuring the wave-front of an optical system,thus to obtain the wave-front data matrix.As to finite focus distance,Zemax simulation is used to obtain the wave-front data matrix.With Matlab,the aberration fitting program is compiled and the conjugate wave-front data matrix is changed to a corresponding 8-bit conjugate gray-scale image in BMP format.According to the phase modulation principle of liquid crystal spatial light modulator,the conjugate gray-scale image and wave-front distortion correcting image of the modulator are loaded on the silicon based LCD panel.The imaging resolution reaches 1348 LW/PH,is higher than that of 337.8 LW/PH without loading the gray-scale.The test shows that,the imaging quality of photographic systems can be notably enhanced by loading conjugate gray-scale images of wave-front data.