A large number of continuous speckle images with different processing techniques and different surface roughness are taken using the laser speckle measurement method. Through the texture analysis method based on gray-level co-occurrence matrix,four characteristic parameters of the images,angle of second-order moment,moment of inertia,relevance and entropy are calculated and analyzed. The research indicates that,the parameters values of the continuous laser speckle images are stable with little fluctuation and the regular relationship curves of the parameters and surface roughness are testified and verified. Outside interference and dynamic uncertainty of the device over time are eliminated,making results more reliable. The relation database of the parameters and surface roughness is expanded at the same time,and laser speckle measurement method having high precision measurement of surface roughness is testified.