Abstract: A fire spreading prevention system for a vehicle can prevent a fire breaking out in a battery mounted in the vehicle from spreading throughout the vehicle. The fire spreading prevention system includes a battery state detector that detects battery state information for sensing a battery fire in the vehicle; a controller that outputs a control signal for removing a battery upon determining that the battery fire breaks out; and a battery removal apparatus installed in the vehicle to fix the battery to a vehicle body, and configured to release the battery from the vehicle body and simultaneously to remove the battery from the vehicle in response to the control signal from the controller. When a fire is sensed, the fire spreading prevention system removes the battery from the vehicle and separates and discharges the battery to outside of the vehicle, thereby preventing the fire from spreading throughout the vehicle.