The utility model provides a transmission line overhauls platform includes: support body and both ends hang the mechanism, the support body includes two at least support body small matters, the support body small matter comprises two bracing pieces and crosspiece, two bracing piece parallel arrangement are connected through the hinge between the support body small matter through crosspiece fixed connection, hanging the mechanism and compriseing connecting portion and the portion of hanging, connecting portion and the portion of hanging are isosceles triangle's frame, and connecting portion are connected in apex angle department with hanging, are equipped with on the base of connecting portion to cooperate the sleeve of being connected with crosspiece or bracing piece, are equipped with the couple on the base that hangs, the utility model discloses a practicality can effectively improve the circuit construction, and the security of examining and repairing the in-process reduces the wearing and tearing to the composite insulator, improves the operating efficiency, shortens the power off time, simultaneously, uses foldable support body also to make things convenient for the transport