The invention discloses a laser alignment recording device for a spaceborne laser range finder. The laser alignment recording device comprises light guide assemblies, a lens assembly and a focal planeassembly, wherein the light guide assemblies reflect laser detection pulse transmitted by external laser transmitters to the lens assembly and attenuate energy of the laser detection pulse; the lensassembly acquires visible light radiation of ground, receives the laser detection pulse reflected by the light guide assemblies, and transmits the visible light radiation and the laser detection pulseto the focal plane assembly; a certain included angle is formed between an optical axis of the lens assembly and an optical axis of the laser transmitter of an external laser range finder; and the focal plane assembly receives the visible light radiation and the laser detection pulse which are transmitted by the lens assembly, and images the laser detection pulse and the visible light radiation which are transmitted by N light guide assemblies. According to the laser alignment recording device disclosed by the invention, the problem of on-orbit laser alignment recording of the spaceborne laser range finder in a surveying and mapping camera is solved; laser alignment recorded by the device is matched with an optical axis of a stereoscopic surveying and mapping camera, high-precision area target positioning is realized and the large-scale surveying and mapping requirements are met.