Guard bar used for bus

The invention discloses a guard bar used for a bus, which comprises an upper guard bar, a lower guard bar, a corrugated pipe, a front prop, a side fixing support and a bottom fixing support. The bottom of the upper guard bar is fixedly mounted at the top of the lower guard bar through the corrugated pipe, the bottom of the lower guard bar is fixedly installed on the bottom fixing support, the bottom fixing support is fixed on a bus body baseplate, the side fixing support is fixedly installed on one side of the lower guard bar, the upper part of the front prop is fixed at the upper part of the lower guard bar, and the bottom of the front prop is fixed on the bus body baseplate. As the upper and lower guard bars of the guard bar used for the bus are connected together by the corrugated pipe, the front prop is additionally arranged on the lower guard bar, a foam protecting bush is sleeved on the upper guard bar, and the energy absorbing performance of the upper guard bar and the collision resistance of the lower