Roller Barrier Guardrails System can prevent the car through the fence, out of the driving lane effectively by strengthening the performance and installation of upright and guardrails. The anti crash guardrail roller safety rolling barriers system use a rotating structure, install the roller barrier on the upright and make it rotate freely. This free rotation can disassemble the force of percussion from the car. And it will be adsorbed and reduced by the roller barrier effectively. So the road roller barrier system can decrease the influence caused by traffic accidents. Rolling system will create a new traffic protection way.