Lamp with follow-up function

The invention relates to the technical field of lamp illumination, in particular to a lamp with a follow-up function. The device comprises a supporting seat, a lamp box is arranged on the upper surface of one side of the supporting seat, limiting seats are fixedly connected to the other two ends of one side of a fixing frame, a guide groove is formed in the inner wall of a guide plate, a transposition mechanism comprises a connecting frame A, a connecting frame B and a reciprocating assembly, and two fixing seats A are symmetrically and fixedly connected to the positions, between the two limiting seats, of the outer wall of the connecting frame A; the other end of the supporting frame is slidably connected with the inner wall of the guide groove. By arranging the transposition mechanism, the position between the connecting frame A and the connecting frame B can be exchanged, the effect of replacing the lens can be achieved, focusing of illumination light rays or adjustment of the illumination area can be comp