Cable trench cover is folded to many adaptations type push -pull type glass steel, including left side apron and right side apron, left side apron forms by the polylith extension board is articulated with right side apron, left side apron and right side apron lower extreme both sides are equipped with the cable pit slide respectively, and the cable pit slide is parallel with cable pit both sides installation department. The utility model provides a cable trench cover is folded to many adaptations type push -pull type glass steel, slidable left apron collapsible through setting up and right side apron, the cable cloth that can make all kinds of cable pits is put and is become swift, convenient, the suitability is strong, and economical, durable, insulating.