An object of the present invention is to obtain a quick-response fluid control valve.A fluid control valve includes a pressure chamber including an output port; an air supply nozzle and an air exhaust nozzle which are communicatively connected to the pressure chamber and positioned on a common straight line; a flapper assembly which is movable between the air supply nozzle and the air exhaust nozzle and includes a pair of opening/closing control surfaces that face an opening end of the air supply nozzle and an opening end of the air exhaust nozzle, respectively; and a flapper-assembly moving mechanism which moves the flapper assembly so that a distance between the opening end of the air supply nozzle and one of the pair of opening/closing control surfaces increases while a distance between the opening end of the air exhaust nozzle and the other of the pair of opening/closing control surfaces decreases.