The invention belongs to the technical field of digital movie the TV play production and playing, relates to the technology for replacing figures in digital movies and TV plays, and in particular to a method for replacing movie and TV play figures. The method includes: performing positioning, detecting, segmenting and feature extracting on the face of a to-be-replaced figure, positioning and extracting the feature points of the five sense organs of the to-be-replaced figure at the same time, allowing a substitute to imitate the facial performance of the to-be-replaced figure and shooting the substitute, measuring, analyzing and then storing the shot contents, and using figure replacing computer software to perform one-by-one comparison of matching, scaling, light compensation and seamless smoothness and automatically replace the face of the to-be-replaced figure with the face of the substitute. The method is simple in design principle, advanced in used equipment, mature in technology, good in effect, vivid in figure replacing, fast in replacing and friendly in operating environment.