Police car with multi-stage protection bumper

The utility model discloses a police car with a multi-stage protection bumper. The bumper comprises two or more than two anti-collision upright posts, a plurality of connecting cross beams are arranged between the anti-collision upright posts, side wings are arranged on the outer sides of the anti-collision upright posts on the two sides, and the bumper is fixedly connected with a chassis cross beam of the police car through a buffer component, wherein the buffer component is composed of a sliding rail and a sliding rod; a plurality of buffer springs with unequal lengths are arranged inside the sliding rail; when a collision accident of the vehicle occurs, the buffer springs enter an anti-collision buffer state in a staging mode in sequence from small to large according to the size of collision force, the sliding rod is pushed, and multi-stage protection is formed for the vehicle suffering from the collision accident. The bumper of the police car forms multi-stage protection for the police car suffering from the collision accident, so that the damage caused by collision to the police car is reduced to the maximum extent.