Safety buffer device for highway maintenance operation area

The invention discloses a highway maintenance operation area safety buffer device which comprises a plurality of fixing supports, fixing devices slidably connected with the outer surface of a fifth connecting rod are arranged on the sides, close to each other, of the lower portions of the fixing supports, and limiting devices are arranged on the upper portions of inner cavities of the fixing supports. Transmission devices are arranged on the lower portions of inner cavities of the multiple fixing supports. According to the safety buffering device for the highway maintenance operation area, by arranging the fixing device, when the buffering device needs to be installed, fifth connecting rods in two fixing supports can be placed into an inner cavity of the fixing device, then a second transmission ring is rotated to drive a positioning device to move through a transmission rod and a first spring, and the positioning device is driven to move through the second transmission ring; the positioning device drives the