本文利用清初的《裨海紀遊》與清末的《李氏臺灣紀行》這兩本遊記，認識有別於方志所記載的臺灣，從這兩位旅者的角度，以比較分析的方式探討清領時期臺灣區域空間及人文景觀上的變化。遊記是個人對旅遊地自然與人文的詮釋，一個人的觀感想法，深受其教育文化的成長背景影響，故本文首先就郁永河與李仙得的背景、寫作方式及目的加以探究，俾能予以清楚客觀的評斷。繼則藉由兩本遊記對於區域空間的描述，來了解清領時期從淡水到臺灣府之間西部沿海的低地、平原、低海拔山區的生態與原生動、植物，並探究這一百七十幾年來自然環境上的變化。最後，對旅人而言，旅遊地的族群、文化、習俗所展現的異國（或異地）風采，毋寧是令人著迷的，旅者關於此部分雖常帶有仰慕或歧視等不客觀陳述，但也常是遊記中最精采的部分。不論是郁永河或者李仙得，清代臺灣所呈現出來的漢「番」雜處，以及特殊的社會風氣，與其原鄉大陸／美國，應有相當程度的差異。本文亦將嘗試抽出兩本遊記關於清代臺灣社會階層、女性地位、族群關係、社會結構等面向加以論述，藉以探討清政府治臺兩百餘年來社會結構的變遷，並解明臺灣社會的真實狀況。

This paper tries to understand ”Taiwan” other than contained in official history using two travel notes, Pi-Hai Chi-Yu and Charles Wm. Le Gendre Notes of Travel in Formosa. From the angles of these two travelers, a relatively analytic approach is used to explore the variations of regional space and humane aspect in Taiwan during Qing Dynasty.Travel notes are an individual's interpretation of the nature and humanity of the places he has traveled; and one's perception and thought are strongly subject to the educational and cultural background of his upbringing. This paper thus begins by exploring the backgrounds, ways of writing and purposes of Yu Yonghe and Le Gendre, hoping to offer clear and objective comments. And then, this paper tries to understand, through the descriptions of the regional space by these two travel notes, the ecology and native animals and plants in low lands, planes and low-altitude mountains along Taiwan's west coast, from Tamsui to Taiwan-foo during Qing Dynasty, and explore the changes in natural environment for the past seventeen decades.At last, travelers generally were intrigued by tribal cultures and custom where they went by, and they might have non-objective accounts, such as admiration and discrimination, were often involved; yet, these were the most fantastic part of the notes. Whether from Yu Yonghe or Le Gendreor, the mergence of ”savages” and immigrants from Fujian and Guangdong Provinces, and special social atmosphere should be a considerable degree of difference between Qing Dynasty of Taiwan and their homeland (mainland of China or United States). This paper also tries to expound upon social class, women's status, ethnic relations and social structure in Taiwan during Qing Dynasty, in order to investigate the structural changes of the society and expound the real situation in Taiwan's society during Qing Dynasty.