Safety protection device for municipal road pit

The utility model relates to the field of municipal road protection, in particular to a safety protection device for a municipal road pit, which mainly comprises a protective fence main body, an anti-collision plate is arranged above one side of the protective fence main body, the anti-collision plate is connected with the protective fence main body through a plurality of damping rods I, each damping rod I is arranged in the middle of a first spring, and the damping rods I are arranged in the middle of a second spring. The installation groove is formed in the lower portion of the protective fence body, the installation plate is installed in the installation groove, the installation plate is connected with the sliding block through the second damping rod, the sliding block penetrates through the sliding rod to be arranged in the sliding way, the sliding way is arranged in the connecting plate, and the connecting plate is connected with the other anti-collision plate. The anti-collision plate connected to the b