Abstract: A Hydraulic control circuit and a hydraulic control apparatus therefor are disclosed to preferentially feed fluid in a controlled amount or below to a first circuit system and feed fluid in an excessive amount exceeding the controlled amount to a second circuit system, and change over a pressure generated to a pilot pressure. Changing-over of control valves which are provided in the second circuit system permits a pilot pressure to be generated in the circuit. When any trouble occurs in the control valves, fluid fed to the second circuit system is unloaded, to thereby eliminate a possibility that an actuator is unexpectedly actuated.