A variable channel type fan clutch apparatus may include a storage chamber and an operation chamber in which oil may be collected, wherein a fan clutch rotor may be interposed between the storage chamber and the operation chamber, an oil circulatory channel which fluid-connects the storage chamber and the operation chamber to circulate the oil therethrough, and a variable value which may be located in the oil circulatory channel, wherein the variable value may be configured to close the oil circulatory channel when an engine may be stopped or when a fan clutch exceeds an operation temperature, and wherein the variable value may be configured to open the oil circulatory channel when the engine may be operated or when the fan clutch does not exceed the operation temperature.