This thesis study land cultivation process from Ch’ing dynasty to Japanese-Ruled Period in Nan-Zi-Sian river mid-stream region, on the frontier of Kaoshiuang .In order to restructure the regional characteristics, we selected the power of Japanese-Ruled government in Taiwan and private Japanese corporations project to Nan-Zi-Sian river mid-stream region as the research objects. The land cultivation before Japanese-Ruled in Nan-Zi-Sian river mid-stream region, was a process of long-term interaction between Contonese(客家人) and plain aborigines, and that of construction of different life-style in both shores of Nan-Zi-Sian river mid-stream. Despite the fact that Nan-Zi-Sian river mid-stream region had been developed for a long time , the high limitation of unstable natural environment and the characteristic of traditional self-subsistent economy, which compelled the phenomena as individual isolated settlement and scattered space. After 1895, the colonialists accelerated a new growth of development of land cultivation in the mid-stream region. Modern cane-sugar refinery , camphor and afforestation enterprises established in this area. Moreover, after private Japanese corporations invested in mid-stream region, they not only had changed the land-use of the hillside around this area , but had controlled the land operation and agricultural activities. A crowd relationship also change. Under the powerful control of new style land cultivation and enterprise , many landowners and gentry appeared. They became local leaders. Local leaders almost took charge of leaders of important social and economic organizations. The important social and economic organizations became the formation of space of jiezhuangmin, the space of jingchaguan , and the space of buluomin.With agriculture , market ,school ,traffic and police system developed, Nan-Zi-Sian river mid-stream region greatly was structured. Finally, this area had changed the frontier and established tightly contact to other regions.