Safety fence

The utility model relates to the technical field of constructional engineering, in particular to a safety fence which comprises a fence frame which is a main body of the safety fence, is a cuboid with a hollow middle part and consists of fence legs, a baffle plate, a left locking ring, an iron gauze and a right locking ring, and a sensing module which is arranged in the fence frame and is used for sensing the safety fence. The vibration sensor is composed of a vibration detector, a vibration signal emitter, a position detector, a position signal emitter and a control module, and the noise sensor is installed in the fence frame. The defects in the prior art are overcome, the sensing module, the stabilizing piles and the connecting blocks are arranged, the sensing module can send the damage condition and the position of a user when the fence is damaged, the user can handle in time, losses are reduced, the user can flexibly adjust the direction of the fence according to the construction range, and the safety of