A hydraulic control device for controlling hydraulic pressure supplied to a continuously variable transmission configured by stretching a power transmission member between a first pulley and a second pulley, the hydraulic control device comprising: a pressure regulating valve that includes an input port to which line pressure is input, an output port, a drain port, and a spool, the output port being configured to supply an oil chamber of the second pulley with a second pulley pressure, the drain port being configured to discharge the second pulley pressure from the oil chamber, the spool moving according to pilot pressure to regulate the second pulley pressure; a solenoid valve configured to control the pilot pressure; and line pressure control means configured to control the line pressure on the basis of the second pulley pressure and first pulley pressure of the first pulley; characterized by further comprising: hydraulic control means configured to temporarily change the pilot pressure from set pressure during an identical pressure control, the identical pressure control configuring the line pressure identical to the second pulley pressure; and determination means configured to determine that the line pressure and the second pulley pressure are identical in the case where an increasing amount of the second pulley pressure is lower than a predetermined amount when the hydraulic control means temporarily heightens the pilot pressure from the set pressure to increase a circulation area of a flow passage formed between the input port and the output port. a pressure regulating valve that includes an input port to which line pressure is input, an output port, a drain port, and a spool, the output port being configured to supply an oil chamber of the second pulley with a second pulley pressure, the drain port being configured to discharge the second pulley pressure from the oil chamber, the spool moving according to pilot pressure to regulate the second pulley pressure; a solenoid valve configured to control the pilot pressure; and line pressure control means configured to control the line pressure on the basis of the second pulley pressure and first pulley pressure of the first pulley; characterized by further comprising: hydraulic control means configured to temporarily change the pilot pressure from set pressure during an identical pressure control, the identical pressure control configuring the line pressure identical to the second pulley pressure; and determination means configured to determine that the line pressure and the second pulley pressure are identical in the case where an increasing amount of the second pulley pressure is lower than a predetermined amount when the hydraulic control means temporarily heightens the pilot pressure from the set pressure to increase a circulation area of a flow passage formed between the input port and the output port. hydraulic control means configured to temporarily change the pilot pressure from set pressure during an identical pressure control, the identical pressure control configuring the line pressure identical to the second pulley pressure; and determination means configured to determine that the line pressure and the second pulley pressure are identical in the case where an increasing amount of the second pulley pressure is lower than a predetermined amount when the hydraulic control means temporarily heightens the pilot pressure from the set pressure to increase a circulation area of a flow passage formed between the input port and the output port.