The present disclosure discloses a method for constructing an optical splitter and a management terminal. The method includes that: a management terminal connected with a device sends a first instruction to a guide port of the device, wherein the first instruction is used for instructing to turn on a light of the guide port of the device; the guide port is determined according to the light of the guide port, and an optical splitter to be constructed is determined according to an optical splitter tail fiber plugged into the guide port; the management terminal sends a second instruction to a port to be constructed of the device, wherein the second instruction is used for instructing to turn on a light of the port to be constructed of the device; and a tail fiber of the optical splitter to be constructed is plugged into the port to be constructed according to the light of the port to be constructed. According to the present disclosure, the problem that a constructor cannot rapidly determine an optical splitter for construction in a process of constructing multiple optical splitters in the related art is solved, rapid identification and installation of the optical splitters is implemented and a construction speed is increased.