Three-dimensional measurement of structured light of color grating can complete phase match of pixel between single image in left and right cameras. It can realize the reconstruction of surface of objects that move or deform, but the measurement accuracy needs to be improved. Based on the coarse match by phase, more accurate match can be achieved in local region by digital correlation technique of stereo vision between left and right images. As calculating the correlation coefficient, the weights in different color channels are self-adapted according to the color variety feature in different period of color grating and the dimension of correlation windows in left or right is self-adapted according to surface distortion feature from different view. The sub-pixel matching is achieved by bilinear interpolation along the direction of epipolar line. The experimental results prove that the matching technique of self-adaptation digital correlation can improve the accuracy of measurement effectively, and expand the range of application while maintaining the advantages of dynamic measurement and high resolution.