The invention relates to a method for coding touch data as a video stream to save and transmit. The method is characterized by comprising the following steps: 1) converting the touch data on each acquisition point of a three-dimensional human body at different moments into two-dimensional touch image data arranged in timing sequence; 2) coding the obtained two-dimensional touch image data arrangedin timing sequence by using a conventional video compression method to obtain touch stream data for saving and transmitting the touch data or sharing the touch data among different systems; 3) decompressing the obtained touch stream data by using the conventional video compression method to obtain a two-dimensional touch image data sequence arranged in the timing sequence; and 4) performing the touch reproduction on the human body according to the obtained two-dimensional touch image data sequence arranged in the timing sequence. By using the method disclosed by the invention, the data compression and real-time stream transmission problem of the touch data in the network transmission process is fundamentally solved, so that the method can be extensively applied to the saving and transmission of the touch data.