Fence for construction site

The fence for the construction site comprises a fence body, a protection part, a control box and an alarm, the fence body is composed of a frame and a silk screen, the protection part is fixedly installed on the inner side of the fence body and fixedly welded to the silk screen, the protection part is hollow, a detection loop is arranged in the protection part, and the control box is connected with the alarm. The control box is fixedly installed at the top end of the fence body, the detection loop is connected with the control box, the alarm is also connected with the control box, a battery and a controller are arranged in the control box, a solar panel is installed at the top of the control box in an embedded mode, and the battery is used for storing electric energy generated by the solar panel. Meanwhile, electric energy is provided for the detection loop and the alarm, and when the controller detects that the detection loop is disconnected, the alarm is triggered to be started. The anti-theft fence is impr