Zhenhua Shipyard in Qidong city,formerly known as Daoda Shipyard,is established in 2007.Because the problem of capability matching between various functional modules in Zhenhua Shipyard has been highlighted,and some of the facilities are damaged to restrict the production capacity of shipyard seriously.Basing on layout planning of shipyard and analysis of technological process system,we set a scientific and rational planning target according to the enterprise development positioning and the potential of the key production factors and advance a plan that can match the production capacity of each area.The plan is suitable for large-scale,lean,standardized and safe development in the future,which will achieve the goal that rational layout of various functional modules,matching production capacity,smooth production technology and canonical production facilities through analyzing productivity calculation of production facilities as the theoretical foundation.This paper aims at the planning of production capacity upgrading in the existing port area,and adopts the planning method supported by quantitative calculation.Shipyards or other industrial plants facing similar problems can also consult or learn from it.