The invention discloses a bronze stop check valve and belongs to the technical field of check valves. The bronze stop check valve comprises a check valve body; a fixed rod is fixedly connected to theinterior of the check valve body; a first check plate is fixedly connected to the fixed rod; a first rotary shaft is rotationally connected to the interior of the check valve body; a second check plate is fixedly connected to the first rotary shaft; a pulley is provided with a nylon rope; and one end of the nylon rope is fixedly connected to the side wall of the bottom of a valve clack, and the other end of the nylon rope is fixedly connected to the side wall, far away from one end of the first rotary shaft, of the second check plate. For the bronze stop check valve, the valve clack pulls a lower check plate to rotate when moving, and the lower check plate is matched with an upper check plate after rotating a certain angle; the valve clack continues to move downwards so as to continuouslydrive the lower check plate to rotate, and the valve clack moves downwards to a water inlet to seal the water inlet when the lower check plate is matched with the first check plate so that water backflow can be effectively prevented; and the first check plate and the second check plate are matched to further prevent water from flowing back.