A valve device (44) is capable of adjusting the fluid pressure in a vehicle ABS braking device. When wheels (6a,6b) on an axle (2a) of the vehicle have the lock-brake tendency, the brake pressure of brake cylinders (14a,14b) corresponding with the wheels are adaptively matched, thus the brake sliding rate of the wheel is adjusted to the preset best brake sliding rate and the brake pressure is controlled in at least one brake cylinder (14c,14d) of at least another axle, which is at least temporally independent on the brake pressure controlled in at least one brake cylinder of one axle after adjusting the brake sliding rate. The valve device comprises a pressure limit valve device (46) and the brake pressure generated in at least one brake cylinder of one axle exceeds the preset brake pressure value by the pressure limit valve device and the brake pressure of at least one brake cylinder of at least another axle is limited to the brake pressure limit value smaller than the brake pressure obtained by the correlativity of the brake pressure in at least one brake cylinder of one axle.