The utility model discloses a ski braking device. The utility model discloses a snowboard braking device, belongs to the field of skiing braking devices, and aims to provide the snowboard braking device which solves the problems that the existing snowboard skiing skill is very difficult, especially the braking operation is very difficult to master in the skiing process, a beginner is very difficult to achieve the braking effect in emergency, and potential safety hazards are easily caused. A snowboard braking device comprises a snowboard, a connecting device, a main control device and a brakingdevice. Connecting devices are symmetrically arranged on the snowboard, the snowboard is connected with the braking devices on the two sides through the connecting devices, and the two braking devices are connected through a main control device. According to the braking device, braking of single-board skiing can be easier, the problem that potential safety hazards are generated due to the fact that braking action cannot be conducted in an emergency state is effectively solved, and skiing becomes safer.