The invention discloses a novel brake pedal system, which comprises a pedal device, wherein the pedal device comprises a pedal and a pressure sensor; the pedal is connected with the pressure sensor; the pressure sensor is electrically connected with a controller; the controller is connected with a storage kettle valve of an oil storage kettle for storing hydraulic oil; the oil storage kettle is connected with an oil conveying pipeline; and the oil conveying pipeline is connected with calipers. The system also comprises a timer and a speed sensor, wherein the speed sensor is connected with the controller; a pedal used as a switch is connected between the timer and the controller; when the pedal is pressed to the bottom, the connection of the timer and the controller is conducted; and when the pedal is returned to the position, the connection of the timer and the controller is cut off. A pressure sensor braking mode is adopted to replace the traditional vacuum assistance braking mode, the braking effect does not become bad after the novel brake pedal system is used for a long time, and the safety of an automobile is improved. Meanwhile, when the pressure sensor fails, the automobile still can carry out the brake action, and the novel brake pedal system has an extremely-strong safety protection measure. The whole system has the advantages of easiness in implementation, low price and strong applicability.