The invention discloses a medical lamp device which comprises a lamp seat and a lamp cap. The lamp seat is composed of a butt joint part and a base part. A first screw rod is arranged in the butt joint part, and a sliding block is arranged on the first screw rod. The first screw rod extend towards the two sides, the extending end of the left side of the first screw rod is rotationally matched and connected with a first motor, and the extending end of the right side of the first screw rod is rotationally connected with the base part. The bottom end of the sliding block is fixedly connected with the lamp cap. An insertion piece is arranged on the end face of the right side of the lamp cap, and a bulb is arranged at the lower end of the lamp cap. A second sliding cavity, a distribution bin and a circuit cavity which correspond to the lamp cap are arranged in the base part one by one from left to right. The medical lamp device is simple in structure, the possibility that the accident electric shock is caused in a non-connecting manner can be effectively prevented, automatic connecting control can be achieved, the connecting stability is improved, and the possibility that the electric shock is caused by person contact is lowered.