Provided is a spinal traction decompression device. The device comprises a base, columns, a massage mechanism and a swinging mechanism and is characterized in that the columns are arranged on the twosides of the base respectively, the bottoms of the columns are fixedly connected with the two sides of the base, a supporting frame is arranged on the tops of the columns, and the tops of the two columns are hinged to the middles of the two sides of the supporting frame respectively; a traction frame is arranged above the supporting frame, the massage mechanism comprises a massage wheel, a massagewheel track and a track adjusting device, the swinging mechanism comprises a leg bracket, an upper supporting plate, a lower supporting plate, a transverse swinging plate, a vertical swinging plate,an electric push rod B and an electric push rod C. The spinal traction decompression device has the advantages that a traction force is more uniformly distributed on the spine, and the lower limbs areswung while the spine is drawn, so that the traction force is uniformly transmitted to each joint of the spine, and partial damage of the spine due to the overlarge traction force is avoided.