It is a laser distance-finding system optics calibration apparatus which comprises receiving optics system and laser and is characterized by the following: there is located with a receiving angular field stimulate laser in front of the receiving optics system; there is located with parallel light tube at the back of the receiving optics system and the laser; there is located with a image screen vertical to its main axis behind the parallel light tube; there is a surface array CCD behind the image screen which is connected with computer; The output end RS322 serial port and laser are connected with the receiving angular field stimulate laser outer trigger power.