The invention provides an in-advance water spraying type fire disaster prevention device and belongs to the technical field of automobiles. The in-advance water spraying type fire disaster prevention device comprises a vehicle body, an electronic control unit, a wiring harness, a boosting fuel tank, a solenoid valve, boosting ejectors, a tire pressure monitor and a water spraying controller, wherein the boosting ejectors are distributed on the outer sides of four tires respectively; ejection holes of the boosting ejectors are arranged towards the lower end of the vehicle body; a booting fuel pipe is connected with the boosting fuel tank and the boosting ejectors; and the solenoid valve is distributed on the booting fuel pipe. According to the in-advance water spraying type fire disaster prevention device, when the electronic control unit monitors that the certain tire is burst through the tire pressure monitor, the solenoid valve is switched on through the electronic control unit, the boosting ejectors are ignited, water is sprayed on the tires and the degree of knocking the ground by turning over is reduced, so that the injury degree of people in the vehicle is reduced. The in-advance water spraying type fire disaster prevention device has a reasonable structure and a simple design, and is applicable to an optimization design of an automobile overturning loss reduction system.