Automotive anti-lock control system

An anti-lock control member (S1-S6) controls so as to realize any of a pressure decreasing mode where a normally-opened electromagnetic valve (8) is closed, while a normally-closed electromagnetic valve (11) is opened, a holding mode where the normally-opened electromagnetic valve (8) is closed and the normally-closed electromagnetic valve (11) is closed, and a pressure increasing mode where the normally-opened electromagnetic valve (8) is opened, while the normally-closed electromagnetic valve (11) is closed. Then, in the holding mode, for example, in the event that a predetermined condition is established where the voltage of a power supply for a vehicle or the terminal voltage of the normally-opened electromagnetic valve (8) is equal to or smaller than a set value which is determined in advance, a current value that is applied to the normally-opened electromagnetic valve (8) is controlled so as to become smaller than a current value that is applied to the normally-opened electromagnetic valve (8) in the pressure decreasing mode.