In late Koryŏ(高麗) Period, temple economy was most flourish in our history and has serious contradiction and conflict at the same time. The conflict with farmer class, national economy and new-emerging class accepted new ideology was shown in the process of management of land, commercial activities and operating usurious business. There were also many disputes for economic issues in Buddhist world. Study on temple economy was digested being presupposed these problems. Understanding of temple economy can make recognize Buddhist fluctuations from basal. In addition, it is an important research project for understanding fluctuations of social economy because temple economy reflected social and economic problems at that time.