在台灣開拓史的過程中，漢人移民社會與台灣原住民族群間 的互動不僅在經濟生活的交換層面，同時也有武裝衝突與戰爭態 勢。從早期的土牛溝，建立所謂的「番界」，而直至清末日治初 期的隘勇線，無論是處在哪一種型態下，有具體工事而劃定了界 線，也有在界線之際進行的各種活動。但在不同地區與社會型態 中，在不同認知與認定的情形下，界線的意涵不僅為具體的工 事，同時因文化差異而形塑出一條看不到的線，在歷史與社會的 過程中進行各種重構與變化。因此界線的變化不僅指涉是一種勢 力的消長，它也進行了認定的工作，同時也讓雙邊的各種活動進 行了修正。界線的劃定後產生了防禦或是攻擊的向度，在空間上 藉由「界線」逐步的「山地變平地，後山變前山」。而在社會的 意義上，也從將「生番變熟番、熟番變漢人」，這些都回頭引發 了界線的重構與再認定。「劃線」又再一次成為一股推進的動 力，驅動了人越界的慾望，使界線內外的人們有了行動上的依 據，在所謂的跨界、拓邊與包圍的過程中不斷地循環。 本文主要關心的是透過「劃界與劃線」這組概念，如何在這 一條界線的歷史過程中，在各種的時代背景上，產生了什麼樣的 作用？並且在不同的社會因素下，又是如何看待這條界線？希望 透過一個歷史社會學的角度，重新思考今日台灣原住民的現代性 形構是如何開展進行初步的探討。

In the development history of Taiwan, interactions between the Han Chinese and Taiwan's aborigine groups were not only on the economic level but also armed conflicts and wars. From the Tu-niu Ditch in the early period to the so-called “Defense Line of Frontier Guard＂ by the end of the Ching Dynasty and early Japanese colonization period, aboriginal land boundaries of various modes have served concrete boundary purposes. There h a v e a l s o b e e n d i f f e r e n t k i n d s o f a c t i v i t i e s a l o n g t h e s e borderlines. However, boundaries are significant not just in concrete terms. In different areas and social modes, and because of different perceptions and designations, disparities have often resulted in the formation of an invisible line, which underwent change and re-constructed in the course of historical and social progress. Thus, changes in demarcations not only refer to shift of power, they also serve the purpose of making definitions, and lead to revisions in various types of activities of both sides. The drawing of demarcations created the dimension of defenses and attacks. In terms of space, demarcations were gradually moved, such as “mountain lands into flat lands, from rear to front sides of mountains.＂ In sociological terms, “rough savages turned into tamed savages, and then the tamed savages assimilated into the Han populace.＂ All these reflect the re-structuring and redefining of boundaries. Demarcations became a driving force that aroused people's desire to cross boundaries, while also serving as a reference point for people's actions on both sides. They continued to get involved in a circulating process of crossing borders, encroachment and encirclement. This paper attempts to investigate how the concept of “demarcation and lineation＂ has functioned in this historical process in different historical settings and how the boundary has been viewed by different social factors. This study also aims to re-evaluate the modern formation of contemporary Taiwanese aborigine from the perspectives of historical sociology.