The invention relates to a continuous sand blasting tool which includes an internal oil pipe and an external oil pipe. The continuous sand blasting tool is characterized in that the upper end of the internal oil pipe is provided with a compensation type sand blasting sealing tool, the lower end of the external oil pipe is provided with a buffer sand blasting suspension tool, and the lower end of the internal oil pipe is provided with a sitting type strong jet flow sand blasting tool; the compensation type sand blasting sealing tool includes an upper joint I, a central tube, a piston and a sealing sleeve, a packing cup is arranged between the upper joint I and the sealing sleeve, and a piston slides freely on the central tube; the buffer sand blasting suspension tool includes an upper jointII and a lower joint, the upper joint II and the lower joint are connected by threads, and a spring component is arranged in an inner cavity formed by the upper joint II and the lower joint and in front of a plug; and the sitting type strong jet flow sand blasting tool includes an outer tube, a sealing sleeve and a pen tip, the lower end of the pen tip is sequentially in threaded connection to aconstant pressure ball seat, an inner spring seat I, an inner spring seat II and a sand blasting opening. The device can avoid sand blocking and pump blocking, speeds up the process of sand blasting,reduces use of sand blasting liquid and improves the sand blasting efficiency.