HYDRAULIC PRESSURE CONTROL UNIT

A hydraulic pressure control unit according to the present invention is a hydraulic pressure control unit for a vehicular brake system and includes: a discharge channel (), from which a brake fluid is discharged, a pressure of the brake fluid being increased by a pump (); and a pulsation reducer () provided to an intermediate portion of the discharge channel (). The pulsation reducer includes: a pressure change suppressor (), a volume of which varies according to the pressure of the inflow brake fluid; and a throttle valve () arranged on a downstream side of the pressure change suppressor () in the discharge channel (). The throttle valve () includes: a first housing () having an end surface (), one end of which is opened and the other end of which is provided with a first through-hole (), the brake fluid flowing into the first through-hole (); a first valve body () movable in an axial direction of the first housing () in the first housing (); and a first spring member () urging the first valve body () in a direction toward the first through-hole () of the first housing (). The first valve body () includes a seal section () that closes the first through-hole () of the first housing () and is formed with a throttle hole ().