In Taiwan, the ditch system most belongs to the self-established water facilities by the public and 'Liu Kung Ditch' is also involved. The purpose of this research is expected to prepare a set of preservation plan for using the historical space of ditch system by database establishment of ditch system, arrangement and analysis on use mode of ditch space and surrounding land. On-site survey, measuring and drawing, supplemented interview with local habitants and collection of literature are the methodology used in this research. Through above said operative procedure, transfer the data acquired to an evaluated one to be a recycling preparation when the ditch system recovers in the future. It's expected to introduce and preserve the development history of ditch completely and perfectly through rebuilding and recovery of ditch system.