The utility model discloses sand blasting equipment in a container. The sand blasting equipment comprises a fixed mount, a spray gun and a traction driving device, wherein the fixed mount is provided with a vertical beam chute; the spray gun is slidably fixed in the vertical beam chute, the traction driving device comprises a main closed ring traction driving mechanism and an auxiliary closed ring traction driving mechanism, wherein the main closed ring traction driving mechanism tracts the spray gun to move and consists of a main chain wheel set which consists of a main driving chain wheel; the auxiliary closed ring traction driving mechanism tracts the spray gun to swing and consists of an auxiliary chain wheel set which consists of an auxiliary driving chain wheel, the main chain wheel sets in the same one plane form a main closed ring drive, and the auxiliary chain wheel sets in the same one plane form an auxiliary closed ring drive; the main driving chain wheel and the auxiliary driving chain wheel are coaxial and have different reference circle diameters. According to the sand blasting equipment in the container, the spray gun can stably swing while sliding up and down along the vertical beam chute, so that the blasting area is increased and the blasting quality is improved.