本研究探討澎湖南方海域東嶼坪嶼、西嶼坪嶼、東吉嶼及西吉嶼等四島及周邊島嶼陸域的地形地質景觀特色，希望研究能瞭解資源的特性，同時也可以作為澎湖離島自然景觀開發與評估未來經營管理的參考。結果顯示，研究區內除東吉嶼、東嶼坪嶼有港埠，西嶼坪嶼、鋤頭嶼有簡易碼頭外，其餘零星小島大都是屬於較不易抵達、且部分島嶼並無簡易交通措施可登岸便於從事大眾旅遊的區域。但地質、地形自然景觀的多樣性豐富，東吉嶼非常適合作為生態旅遊的基地。從保育的觀點而言，研究區有許多地方需要保護。例如各個島嶼的四周，都具有不同的玄武岩柱狀節理海崖、海蝕平台、火山碎屑岩風光、珊瑚礁以及白色珊瑚礁碎屑海灘等地景。這些地景未來都是具有高度景觀價值的資源。研究也顯示由於東吉嶼、東嶼坪嶼等島即使港埠加以改善，但島上旅遊措施不足，就目前而言，可說只可以提供非常有限的遊客服務。其他小島無住民甚至無法登島，因此發展遊憩觀光必須在遊客承載量上，有一定的限制，才能達到自然景觀的最佳利用，同時維護旅遊品質兼顧安全與環境之保育。

Dongjiyu, Sijiyu, Dongyupingju, and Siyupingyu are small islands which are located in the southern part of the Penghu archipelago. This paper presents the results of an examination of the terrestrial geomorphological resources. Landscape here is characterized by basaltic rock, Columnar jointing cliff, coral reefs, marine erosions, wide boroad tidal flate and coral reefs sand beaches. This paper aims, to discover locations which have unique scenic features suitable for landscape and ecological conservation. Part of the landscape resource investigation record has been used to establish a geological and landscape resource database. Through the assessment of the landscape aesthetic qualities (landscape aesthetic assessment),characteristics of landscape resources and geological features is presented. According to this study, these four islands could be a good place for ecotourism. However these four islands need more attention on landscape and ecological conservation. Landscapes such as different basalt columns, marine platforms, coral reef and beaches are essential sites for conservation. Because of limited development and facility, concept of carrying capacity should be applied at these islands.