A device is provided which improves the brake feeling on a motorcycle which uses a front-rear interlocking brake system. In the motorcycle braking device, which is equipped with an ABS, a brake caliper for a rear wheel works in conjunction with brake operation for a front wheel. When the ABS is active on the side of the front wheel, which is braked by a front wheel brake actuating unit such as a brake lever, the braking pressure ratio between the brake caliper for the front wheel and the brake caliper for the rear wheel is different from that when the ABS is inactive. A process is disclosed for setting an appropriate braking pressure at the rear wheel brake caliper based on a predetermined map of the relationship between the front wheel master cylinder pressure and the rear wheel brake caliper pressure, depending on the control mode.