Method for shortening ship building period based on hull shafting construction process

The invention discloses a method for shortening a ship building period based on a hull shafting construction process, relates to the field of ship building, and solves the problem of long process period of an existing ship building process. The method comprises the steps: completing assembling and welding of a main hull and hot work correction of an outer plate and a main deck; completing the inspection of the tightness test of the main hull; ballasting the main ship body according to the 'equipment ballasting arrangement diagram'; setting a marker post observation point of the main hull, monitoring the state of the main hull at fixed time every day and making a record; performing ship body shafting process construction according to the recorded state number of the main ship body; in the process of ship body shafting process construction, performing construction of an upper building subsection upper slipway carrying process, and performing construction of upper building welding and upper building firework cor