The invention discloses an anti-lock hydraulic disc brake device. The anti-lock hydraulic disc brake device comprises a front disc, a rear disc, a front clamp, a rear clamp, a hydraulic cylinder, a cam, a drive-by-wire dead lock switch and a brake crank, wherein the discs are clamped at the inner side of the front clamp or the inner side of the rear clamp respectively, the hydraulic cylinder comprises a piston channel, an upper oil chamber, a lower oil chamber, a dead lock rotary knob, a reset spring and a piston rod contact, the upper oil chamber and the lower oil chamber are separated through the dead lock rotary knob, the dead lock rotary knob is provided with an oil hole and connected with the drive-by-wire dead lock switch, the reset spring is installed in the lower oil chamber, a bearing wheel is arranged at the lower end of the piston rod contact, the hydraulic cylinder is in contact with the cam through the bearing wheel and squeezes the cam, and the cam is fixed to the front disc. The invention provides a bicycle anti-lock device. The bicycle anti-lock device is reasonable in structure, safe and reliable, can adjust snub strength and lock up a bicycle to prevent locking, and has good brake performance and operability.