The invention relates to a steel pipe surface multi-stage grinding treatment machine. The steel pipe surface multi-stage grinding treatment machine comprises a mounting base, a fixed base, a limitingplate, grinding devices, inner support devices and a screw, the limiting plate is mounted between the upper end of the mounting base and the upper end of the fixed base, the grinding devices are evenly distributed between the limiting plate and the screw, the inner support devices are mounted on the centers of the grinding devices, and are mounted on the mounting base, the screw is mounted betweenthe mounting base and the fixed base through a bearing, the screw is located on the right below end of the limiting plate, and the problems that after an existing traditional grinding machine grindsa steel pipe, the surface is still not smooth, dust scrap materials remaining on the steel pipe surface can cause scratches and hollow points in the grinding process of the steel pipe, in the grindingprocess, the dust scrap materials floating in the air can appear, after being aspirated by a worker, the materials can cause body discomfort, and heat generated in the grinding process can damage thegrinding devices are solved.