The invention discloses a highway camera replacement structure comprising a camera support and a device support. The highway camera replacement structure is characterized in that the camera support comprises a first beam frame, multiple movable device frames are installed on the first beam frame, pull blocks are arranged on the multiple movable device frames in a staggered manner, electric sheavesets are installed at the two ends of the first beam frame, steel wire ropes are connected between the electric sheave sets at the two ends, and the pull blocks are clamped on the steel wire ropes tobe fixed. The highway camera replacement structure has the beneficial effects that the structural design is reasonable, installation and replacement are mechanically conducted for cameras of highways,the speed is high, traffic flow is not influenced, the safety of constructors is high, manpower can be saved, and the highway camera replacement structure is suitable for application and popularization.