This thesis study land cultivation process from Ch’ing dynasty to Japanese-ruled period in Yujing Basin, on the frontier of Tainan. In order to restructure the regional specialty, we selected private Japanese corporations as the research objects, and, meanwhile, through describing their establishment, operative contents, and results of land cultivation in Yujing Basin, to examine the closed-mountainous basin.The land cultivation before Japanese-ruled period in Yujing Basin, was a process of long-term interaction between Han-Chinese and plain aborigines, and that of construction of traditional Han-Chinese society. Despite the fact that Yujing Basin 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 the low rate of cultivated land, a lot of wasteland, low land capacity, and low rate of repayment on land investment.
