A multifunctional scoliosis rehabilitation training device comprises an upper limb swing crawling mechanism, an abdomen supporting mechanism and a lower limb swing crawling mechanism which are arranged sequentially, wherein the upper limb swing crawling mechanism comprises an upper limb fan-shaped swing slide plate and an upper limb crank-rocker mechanism, the upper limb crank-rocker mechanism is in transmission connection with the upper limb fan-shaped swing slide plate and can drive the upper limb fan-shaped swing slide plate to swing left and right, and two upper limb fan-shaped movement blocks are inlaid in the upper limb fan-shaped swing slide plate; the lower limb swing crawling mechanism comprises a lower limb fan-shaped swing slide plate and a lower limb crank-rocker mechanism, the lower limb crank-rocker mechanism is in transmission connection with the lower limb fan-shaped swing slide plate and can drive the lower limb fan-shaped swing slide plate to swing left and right, and two lower limb fan-shaped movement blocks are inlaid in the lower limb fan-shaped swing slide plate. According to the multifunctional scoliosis rehabilitation training device, multiple swing crawling training modes such as creeping swing crawling, ground-holding swing crawling, climbing swing crawling, bending-down swing crawling and the like in active and passive modes can be realized.