The multifunctional traction bed (abbreviation: it is a microcomputer-controlled three-dimensional multifunctional traction bed) is a traction bed for treating the lumbar region, with a telescopic motor drive for traction, capable of repeating the type of traction, repeating patterns on the ladder, repeated stairs up and down traction, intermittent, intermittent ladder traction and periodic traction up and down the stairs, continuous type traction and continuous ladder traction, and in any traction mode, there is automatic compensation for traction force, so the traction force is relatively constant.