The utility model discloses a sand blasting head for inner wall of steel pipe, which comprises a nozzle and a sprinkler body used for equipping the nozzle. The utility model is characterized in that the nozzle is fixed to the sprinkler body through a gland bush and a screw. The sand blasting head for inner wall of steel pipe causes more firm fixing of the nozzle, can effectively prevent the blowing out of the nozzle, and furthermore has the advantages of increased service life, convenient replacement and good generalization value.