The invention relates to an inflator pump adopting valve plates. The inflator pump comprises a pump body, an air inlet/outlet valve plate and an air inlet/outlet end panel, wherein a piston rod which can move up and down is vertically arranged inside the pump body; an eccentric gear is mounted in an inner mounting hole at the upper end of the piston rod; a leather cup is mounted at the lower end of the piston rod; the air inlet/outlet valve plate is mounted at the lower end of the pump body; two through hole are formed in the air inlet/outlet valve plate; a plurality of air intake holes and air exhaust holes are uniformly distributed around the two through holes; a conical air intake valve groove is formed in the upper ends of the air intake holes; the air intake valve plate is mounted in the air intake valve groove; a conical air exhaust valve groove is formed in the lower ends of the air exhaust holes; the air exhaust valve plate is mounted in the air exhaust valve groove; and air exhaust connecting pipes which communicate with an air exhaust cavity is mounted on a side wall of the air inlet/outlet end panel. The inflator pump provided by the invention adopts the valve plates, and the peripheries of the valve plates are warped, the air intake holes and the air exhaust holes can be quickly sealed by utilizing the elasticity of the valve plates after the air intake/exhaust process is finished, thereby effectively protecting high-pressure air from backflow and guaranteeing that the directly-driven inflator pump can be started at high pressure.