A control device for a vehicle continuously variable transmission, the vehicle continuously variable transmission including: an input-side variable pulley of which an effective diameter is variable; an output-side variable pulley of which an effective diameter is variable; a transmission belt that is wound between the input-side variable pulley and the output-side variable pulley; and a control valve that has a spool valve element positioned at any one of a normal side and a garage side, an input port and an output port that is connected to the input-side variable pulley, wherein, in the event of a failure in which a primary pressure (Pin) that is an input-side pressure applied to the input-side variable pulley is not normally output, a hydraulic pressure (P SC) is supplied to change the spool valve element toward the garage side so that a secondary pressure (Pout) that is supplied to the input port is output via the output port to the input-side variable pulley, the control device characterized by comprising a check valve that regulates the primary pressure (Pin) on the basis of the secondary pressure (Pout) that is an output-side pressure applied to the output-side variable pulley, wherein the check valve reduces the secondary pressure (Pout) so as to output a regulated secondary pressure (Pout') which is supplied the to the input port as the primary pressure (Pin); and a control unit (130, 132, 134, 138, 140) that, when the regulated secondary pressure (Pout) is output by the check valve, controls the secondary pressure (Pout) on a basis of a pressure required to suppress a slip of the transmission belt and a pressure required to achieve a target speed ratio. an input-side variable pulley of which an effective diameter is variable; an output-side variable pulley of which an effective diameter is variable; a transmission belt that is wound between the input-side variable pulley and the output-side variable pulley; and a control valve that has a spool valve element positioned at any one of a normal side and a garage side, an input port and an output port that is connected to the input-side variable pulley, wherein, in the event of a failure in which a primary pressure (Pin) that is an input-side pressure applied to the input-side variable pulley is not normally output, a hydraulic pressure (P SC) is supplied to change the spool valve element toward the garage side so that a secondary pressure (Pout) that is supplied to the input port is output via the output port to the input-side variable pulley, the control device characterized by comprising a check valve that regulates the primary pressure (Pin) on the basis of the secondary pressure (Pout) that is an output-side pressure applied to the output-side variable pulley, wherein the check valve reduces the secondary pressure (Pout) so as to output a regulated secondary pressure (Pout') which is supplied the to the input port as the primary pressure (Pin); and a control unit (130, 132, 134, 138, 140) that, when the regulated secondary pressure (Pout) is output by the check valve, controls the secondary pressure (Pout) on a basis of a pressure required to suppress a slip of the transmission belt and a pressure required to achieve a target speed ratio.