The invention discloses a multifunctional back motion device, mainly comprising a base, a hip section, a belly and chest part section, a leg section, a head section, a neck traction frame and a soft mattress. One side of a lifting column of the base is combined with the hip section, the opposite side thereof is combined with the belly and chest section, the base is provided with a wiggling handle of a wiggler, the wiggling handle is combined with a second driver, the tail end of the wiggling handle is combined at the bottom of he hip section, a third driver is arranged on a front section of a central axis of the hip section, the tail end of the third driver is combined with one side below a hip base, a fourth driver combined with a sliding support frame is arranged on the middle section of a hip base, the other side of the hip section is combined with the leg section, a fifth driver combined with the lifting column is arranged on one side of the belly and chest section, the belly and chest section is combined with the head section, a support rod combined with a sixth driver is arranged below the belly and chest section, the front end of the head section is combined with the neck traction frame, and the lower end of the support rod of the head section is provided with a traction rod combined with a seventh driver. By using the plurality of drivers, which are controlled manually or by the settings of a computer, to respectively actuate, the purpose of assisting the physiotherapy on spine correction of a user is achieved so as to treat discomforts on the back due to scoliosis, spinal misalignment, spinal fusion, prominent cartilage, and the like.