Construction template of overhead line system heightening platform

The utility model belongs to the technical field of railway construction, and relates to a construction template of a contact network heightening platform, which comprises a reinforcement cage body, two first templates and a second template, and the second template consists of two U-shaped plates, a V-shaped plate and two connecting plates; the two third templates are located between the two first templates and close to the other ends of the two first templates and are parallel to the second templates respectively, a gap is reserved between one ends of the two third templates, and the other ends of the two third templates are connected with the other ends of the corresponding first templates respectively; and the structures of the two third templates are the same as the structure of the second template. The second formwork and the two third formworks are arranged in the reinforcement cage body, the formwork mounting and dismounting difficulty is lowered, the construction efficiency is improved, meanwhile, due