To provide a brake pressure control device, by which re-pressure up impossibility due to jamming of foreign matter can be prevented and at the time of quick service, enough liquid pressure is supplied to attain high safety.

A piston 16 is stored in a bore hole 12, a valve element 24 is stored in the piston 16, a first variable throttle 32 formed between the bore hole 12 and the piston 16 and second and third variable throttles 33, 34 formed between the piston 16 and the valve element 24 are disposed in series, and a passage communicating with the wheel cylinder side main passage 1 is put in the connecting state between the second variable throttle 33 and the third variable throttle 34.