The invention discloses a color digital raster coding method for inverse cancellation nonlinearity error. The method comprises the following steps of: projecting a color R\G\B single channel digital grating, performing a R\G\B channel calibration, calculating a crosstalk coefficient of the corresponding channel, projecting an RGB mixed channel color digital grating, collecting an image, obtainingthe phase information, and reconstructing a three-dimensional shape. Compared with a traditional color digital grating, projecting a same frequency image with a phase difference of half a cycle additionally, and the method compressing the digital gratings with high, medium and low frequencies and phase difference of 2pi/3 in RGB three channels and generating the high, medium and low frequency color fringe image, setting the high-frequency phase offset to pi/3 to additionally generate a color fringe image, the nonlinear error can be effectively suppressed and corrected by using the signal halfcycle cancellation principle. Projecting fewer pictures, and also eliminating the inevitable Gamma error for the projector under guaranteeing the precision and the advantages of the digital grating three-dimensional measurement. According to the color digital grating coding method for inverse cancellation nonlinearity error, extracting a plurality of stripes from one color image, and counteractingthe nonlinear error by the half cycle inverse compensation method, improving the three-dimensional measurement speed, and can be applied to the field of rapid three-dimensional measurement.