Auxiliary illumination light return device for total station prism

The invention belongs to the technical field of measurement, and particularly relates to a total station prism auxiliary illumination light return device which comprises a fixing frame and an LED light source lamp, a guide groove is formed in the inner wall of the left end of the fixing frame, a clamping and positioning assembly is installed on the inner side of the front end of the fixing frame, and the LED light source lamp is arranged behind the fixing frame. The LED light source lamp is connected with the fixing frame through a supporting arm assembly, and second locking bolts are installed on the outer walls of the ends, connected with the supporting arm assembly, of the fixing frame and the LED light source lamp in a threaded mode. The device can be directly and fixedly mounted on the prism bar without assistance of other personnel, is quick to mount and convenient to use, can quickly adjust the position of the LED light source lamp and the light supplementing direction and angle, is convenient to assis