Tail-fiber type integral light receiving and transmitting module

The utility model discloses a tail-fiber type integral light receiving and transmitting module which is internally provided with a light transmitting component and a light receiving component. The light transmitting component and the light receiving component are connected with one end of a tail fiber; the tail fiber penetrates out of the shell of the tail-fiber type integral light receiving and transmitting module; and the other end of the tail fiber is connected with an optical connected based on threaded connection. The butt joint of an optical module and an external optical fiber is realized in a threaded rotation and fixation way, the optical path connection reliability is good, and the signals are transmitted accurately and stably in an optical communication system. The tail-fiber type integral light receiving and transmitting module can be particularly applied to the occasions with high requirement for the mechanical reliability of the optical module.