在當今營造可持續發展的人類家園背景下，發達國家的綠色建築發展方向已由新建建築轉向既有建築的改造再利用。本文以廣州地區既有建築之綠色改造中的建築設計要素為研究對象，以文獻回顧與參與式觀察為研究方法，探究影響綠色改造成效之建築設計要素中的關鍵因素。研究中運用了管理學中的多準則決策分析方法，在專家訪談和問卷調查的基礎上，經DANP（DEMATEL based ANP）方法統計後，獲得八項在既有建築綠色改造中影響建築設計之關鍵因素；再通過IPA分析，獲得各關鍵要素之績效值與重要度，據此分析建築設計評價要素中的急需改善、持續保持、重新思考和可能過分重視等要素。研究結果為：1.建構了八項影響綠色改造之建築設計的關鍵因素並繪製網絡關係圖；2.影響綠色改造的非關鍵因素中，發現有五個指標相對其他要素而言重要度較低，反映出該指標在綠色改造過程中的重視程度不夠；3.消防設計作為安全的重要組成內容，其績效值偏低，顯示出有進一步改善提升的必要。本論文的研究結果有助於建築師掌握綠色改造的建築設計專業的關鍵要素及相互關聯性，利於提高設計時效，可作為未來完善「既有建築綠色改造評價標準」的參考。

In the context of building a sustainable human homeland today, the development direction of green buildings in developed countries has shifted from new buildings to the transformation and reuse of existing buildings. Taking the architectural design elements in the green retrofitting of the existing buildings in Guangzhou as the research object, this paper takes the literature review and the participatory observation as the research method to explore the key factors in the architectural design elements that affect the effect of green retrofitting. In the study, the multi-criterion decision analysis method in management was used, and on the basis of expert interview and questionnaire survey, eight key factors of architectural design in the green retrofitting of existing buildings were obtained by DANP (DEMATEL based ANP) method, and then through IPA analysis, The performance value and importance of each key element are obtained, and the factors such as urgent improvement, continuous maintenance, rethinking and possible excessive attention in the evaluation elements of architectural design are analyzed. The results are as follows: 1. Constructing eight key factors affecting green retrofitting and drawing network Diagram; 2. Among the non-key factors affecting green retrofitting, five pointers were found to be less important than other elements, reflecting the insufficient importance of the pointer in the green retrofitting process; 3. Fire protection design as an important component of safety, although it could not be included the key elements of green retrofitting evaluation, but its low performance value, shows that there is a need for further improvement and promotion. The research results of this thesis are helpful for architects to master the key elements and correlations of green retrofitting architectural design specialty, which is beneficial to improve the design prescription, and can be used as a reference for perfecting the evaluation standard of ＂ green retrofitting of existing buildings＂ in the future.