Abstract: The collision between a vehicle and a guardrail is an extremely complicated process. Reasonable selection and setting of anti-collision facilities at the triangulation end can eff ectively improve driving safety. This paper proposes to use computer simulation to classify the triangulation end protection facilities. analysis. Combined with the current situation and demand of domestic highways, a scene of separating the anti-collision bucket and the anti-collision pad was set up. According to the investigation of the loss of the tributary accident during the operation period of the highway, it can provide guidance for the engineering design.