The utility model discloses a television direct broadcast screen capture system. A video screen capture server obtains direct broadcast signals, establishes video time stamps and buffer areas corresponding with image frames and sends corresponding image frames to a video screen capture memorizer in dependence on the time stamps of screen capture requests; a screen capture interface server is used for receiving terminal screen capture requests, obtaining screen capture request parameters in the screen capture requests and establishing mapping relation between terminals and the time stamps in the buffer areas of the video screen capture server and the corresponding image frames through the screen capture request parameters; the screen capture interface server receives terminal query and browse instructions, searches the image frames in the video screen capture memorizer and sends the image frames to terminals; the screen capture interface server receives terminal issued instructions and issues the image frames screened and determined by the terminals; the video screen capture memorizer is used for storing corresponding image frames in dependence on the time stamps of the screen capture requests. The method can accurately capture clear direct broadcast television frames and instantly issue the frames to the network, the screen capture operation being convenient and fast and the screen capture effect being good.