The　reasonable　application　of　freeway　risk　prevention　and　control　facilities　can　significantly　reduce　traffic　risks.　This　paper　first　reviewed　and　summarized　the　research　status　of　freeway　risk　prevention　and　control　facilities　and　divided　them　into　non-electrification　and　electrification　prevention　and　control　facilities.　Second,　on　this　basis,　the　paper　summarizes　the　effect　of　non-electrification　and　electrification　prevention　and　control　facilities　on　risk　prevention　and　control　of　freeways,　along　with　the　critical　issues　in　the　study.　The　application　scenarios　and　effectiveness　of　different　electrification　risk　prevention　and　control　facilities　are　discussed.　Third,　the　application　effects　of　the　risk　prevention　and　control　system　comprising　electrification　facilities　in　various　typical　scenarios　are　further　analyzed.　Finally,　the　results　of　the　literature　review　and　future　developments　are　summarized.　The　literature　review　results　demonstrate　that　the　risk　prevention　and　control　facilities　and　systems　of　the　freeway　have　a　satisfactory　effect　in　different　scenarios.　The　non-electrification　prevention　and　control　facilities　are　limited　by　their　physical　characteristics,　and　certain　defects　and　deficiencies　in　risk　prevention　and　control　exist.　The　electrified　risk　prevention　and　control　facilities　and　risk　prevention　and　control　systems　should　be　extensively　used,　and　the　prevention　and　control　of　traffic　risks　such　as　traffic　congestion　and　bad　weather　should　be　increasingly　improved.　The　results　of　this　study　can　provide　some　reference　for　the　setting　and　application　of　risk　prevention　and　control　facilities　on　freeways　in　the　future.　©　2024　Southwest　Jiaotong　University.　All　rights　reserved.