Provided is a control device for a hydraulic control valve that can increase an efficiency of removing a foreign matter clogged in the hydraulic control valve. A control device controls a hydraulic control valve that controls a pump capacity of a variable displacement oil pump. The hydraulic control valve includes a sleeve and a spool valve that moves in the sleeve, and is configured to change a pump capacity by controlling an oil pressure by moving a spool valve between one end portion and the other end portion in the sleeve. The control device for the hydraulic control valve includes: a drive control unit that controls driving of the spool valve; and a determination unit that determines whether or not clogging of a foreign matter exists between a sleeve and the spool valve, and determines a position of the clogging of the foreign matter in a case where the foreign matter exists between a sleeve and the spool valve, and determines a position of the clogging of a foreign matter in a case where the clogging of a foreign matter exists.