A fast calibration method for structured-light parameters of 3D measurement system based on the planar target is proposed. This method, based on photogrammetry technology, using the code point making planar target, obtains the target plane light images from the camera. After the affine transformation and resection according to the codes point’s image coordinates and target coordinates, the camera coordinate of light plane calibration point can be got quickly and easily, then calibration completed after the plane fitting. Experiments results indicate that this method has high accuracy, the RMS of light plane fitting is better than 0.07 mm, and the average relative error is better than 0.33%. Furthermore, this method is also suitable for many other modes structured light with high generality and efficient, flexible and suitable for field calibration.