Statistical analysis on the dimensions of ships were studied in order to apply those latest values to the planning and designs of port facilities. In this study those items as to displacement tonnage, some projected areas, wetted surface area, equipment number and mast height above water level are investigated for eight kind of ships.
　Compared with the study obtained about ten years ago, results are summedized as follows.
1)According to the regression analysis, displacement tonnage, projected areas, wetted surface area, equipment number can be expressed as the exponential function of gross tonnage (GT) or deadweight toonage (DW).
2)Mast height above water level can be also expressed as the exponential function of GT ro DW, but it has the tendency to saturate with increases of GT or DW.
3)According to the testing statistical hypothesis with level of significance 0.1, there can be seen significant differences in forms between this study and privious one in many kind of ships and investigated tiems.
4)Tendency of larger-size can be seen in Passenger Boat, Car Ferry, Full Container Carrier, Bulk Carrier and Pure Car Carrier obviously.