The utility model provides a novel sequence action pneumatic cylinder which the technical essential is: including first pneumatic cylinder and second pneumatic cylinder, the propelling movement oil -feed port is established to rear end on the first pneumatic cylinder, the front end of first pneumatic cylinder establish with the communicating withdrawal oil -feed port of second oil pocket, establish first oil duct in the hydraulic cylinder piston rod, establish the oilhole on the hydraulic cylinder piston rod, but establish the removal of shutoff oilhole in the second oil pocket and seal the piece, the second oil pocket passes through the first oil pocket in the oilhole intercommunication hydraulic cylinder piston rod, the shutoff is overhead has seted up first hydraulic fluid port, second hydraulic fluid port and second oil duct, first hydraulic fluid port communicates with each other with first oil duct, the second hydraulic fluid port passes through second oil duct and first oil pocket intercommunication, first hydraulic fluid port intercommunication third hydraulic fluid port, second hydraulic fluid port intercommunication fourth hydraulic fluid port, the third hydraulic fluid port is at the 2nd hydraulic cylinder piston rod's rear, the fourth hydraulic fluid port is in the 2nd hydraulic cylinder piston rod afterbody the place ahead. The utility model discloses can make two piston rods press sequence action, have the pushing speed that can make each piston rod simultaneously and keep even with unanimous, that thrust is big advantage.