在初步設計階段如果能準確的預估船舶鋼料重量，將使船廠可以掌握船舶的建造成本，進而提高與船東簽訂合約的機會。從鋼料重量的預估方法中，運用分段特徵法可以準確的預估船舶重量，但此方法在船艏、船艉和住艙等形狀變化大的船段，重量預估的誤差結果是較大的。因此本研究運用分段特徵法加入船段形狀特徵來解決此問題。從文獻發現，在初步設計階段進行主要尺寸與船段形狀的整合，可以提升船舶設計的有效性。藉由此概念，分段特徵法的分析參數除了使用船舶的全長、寬、深和船段長度，另增加了船段形狀。船段形狀取自船段佈置圖的縱剖面面積，作為船段形狀的特徵參數，主要用來表達船段形狀的變化，以提高船段形狀變化大的預估準確性。由船段形狀特徵的重量預估結果顯示，在船艏、船艉和住艙的預估誤差是3%、5%、5%，而原分段特徵法的預估誤差是7%、10%、6%，表示加入船段形狀特徵可以改善重量預估結果。最後，本研究提出快速建立概略佈置圖的方法，藉由鋼料重量預估結果回饋到船段形狀資料庫，擷取出與預估結果相似的船段形狀特徵。由此便可以快速的建立船東需求的船殼外型，讓船廠與船東在初步設計階段，對於船型的選擇與形狀的構型能有新的參考基準。

In the preliminary design stage, the accurate estimation of steel weight of ships are important in shipyards. It can support to add the chances for signing a new contract with the ship-owner by estimating a reasonable budget of a new ship. Estimating the weight of the main segments of an entire ship by the feature-based segment method is accurate and effectively reduce the overall estimated error. However, the estimates of the special segments, which are the forepeak, aft and deckhouse, are still uncertainties because of the changeable hull form. Therefore, this study proposes hull form feature to resolve this question.In this study, apply feature-based segment method combined with the hull form features to estimate steel weight of ships. Through the estimated results, we could feedback to the database of hull form feature, and extract the hull form which is similar with the estimated feature. Then, we can quickly to create hull form of the ship based on the shipowner’s requirement, and then apply a rough arrangement in preliminary design stage. For the forepeak, aft and deckhouse, the estimated performances using hull form feature have errors with standard deviations of 3%, 5% and 5%, respectively. Meanwhile, the corresponding errors for the origin methods are 7%, 10%, and 6%. The results are suitable for the accurate segment estimation. In addition, we create a quick method to apply the suggestion of the contour of a ship for a rough arrangement. For shipyards and ship-owners, it applied a reference standard to select and configure a ship in preliminary design stage.