Track system and method for overhauling rotor of turbine generator of floating power generation ship

The invention provides a floating power generation ship turbonator rotor maintenance track system and method.A track deformation joint is formed in the connecting portion of the first end of a first maintenance track and the first end of a second maintenance track, and the side, away from the second maintenance track, of the first maintenance track is fixedly connected with a steam engine room frame structure; the side, away from the first overhauling track, of the second overhauling track is fixedly connected with the track support. The rail support is arranged between the first boiler and the second boiler and at least comprises a first rod piece and a second rod piece which are parallel to each other, the first end of the first rod piece is fixedly connected with a first bracket on the first boiler steel frame, and the first end of the second rod piece is fixedly connected with a second bracket on the first boiler steel frame. The second end of the first rod piece is in sliding connection with a third brac