Aiming at the problem that the phase target calibration camera needs to collect multiple patterns to obtain phase, a camera calibration method based on color cross fringe is proposed. This method only needs one fringe image to complete the extraction of feature identification points at each calibration position. A red and blue cross fringe image is display on a LCD (liquid crystal display) and captured by a camera. The Fourier transform and multi-frequency heterodyne method are used to obtain the absolute phase in the horizontal and vertical directions. The internal parameters of the camera are calibrated by using the exact correspondence between the spatial position of the phase target and the absolute phase in the image. The interior parameters of the camera are optimized by a nonlinear least square method. The experimental results based on the re-projection error show that this method can achieve camera calibration quickly and accurately.