The invention discloses a special reflux rail system front line segmentation design scheme, including a common segment segmentation scheme of the dedicated return rail main line and the tie line return mode conversion scheme, the segmentation scheme of the common section of the main line of the special return rail satisfies the requirements of the vehicle to return normally in the main line underthe special return rail return mode, the tie line backflow mode conversion scheme meets the requirements of vehicle backflow mode conversion and operates between different lines, and the special backflow rail main line normal section segmentation scheme and the tie line backflow mode conversion scheme together constitute a special backflow rail system main line segmentation design scheme. The running rail of the invention is connected through the whole line and grounded, so as to reliably ensure the safety of passengers and operators; the running rail is connected with a special return rail bya single conductive device, which ensures smooth return under special circumstances.