Protective guardrail with prompting function for road traffic safety

The utility model discloses a protective guardrail with a prompting function for road traffic safety, and relates to the field of road traffic safety. The protective guardrail with the prompting function for the road traffic safety comprises supporting columns, a fence is arranged between the two supporting columns, the top ends of the supporting columns are sleeved with sleeves, prompting mechanisms are arranged on the outer surfaces of the sleeves, and mounting mechanisms are arranged at the top ends of the supporting columns. The mounting mechanism comprises a moving rod, a connecting block and an inserting rod, the moving rod is inserted into the supporting column, the prompting mechanism comprises a laser lamp, a reflective mirror and a transparent tube, and the laser lamp and the reflective mirror are arranged on the outer surface of the sleeve. According to the protective guardrail with the prompting function for the road traffic safety, the prompting effect of the guardrail can be conveniently improve