The invention relates to a lumbar traction bed used for medical treatment, in particular to a medical treatment lumbar traction bed used for patients in the orthopedics department. In order to solve the technical problems, the medical treatment lumbar traction bed used for the patients in the orthopedics department can be operated by the patients in the orthopedics department, and is good in traction effect and beneficial to treatment and rehabilitation of the patients. In the applied technical scheme, the medical treatment lumbar traction bed used for the patients in the orthopedics department comprises a first bed board, a batter board, a long screw, small bearings, a long pressing plate, a soft cushion, a first sliding sleeve, a sliding rod, a first nut, a first lead screw, a first bearing and others; the bottom of the batter board is connected with the right side of the top of the first bed board. The medical treatment lumbar traction bed used for the patients in the orthopedics department is novel in structure and capable of being operated by the patients in the orthopedics department to tract own lumbar vertebra, traction force can be mastered by the patients, insufficient force exertion or excessive force exertion is avoided, the traction effect is good, and the burdens of medical workers are relieved.