Recently, many researchers have studied on the estimation of groundwater storage and its usable amount in Korea. Those studies were, however, mostly on the groundwater recharge amount over the nation or for the large extent of areas. On the other hand, it has been also needed to study on the regional recharge rate for the planning of groundwater management or for the assessment of groundwater development impacts. In this paper, two practical methods for the estimation of regional groundwater recharge have been studied and proposed, which are $circled1$ the estimation of the groundwater recharge due to the SCS-CN infiltration method, and $circled2$ the estimation of groundwater recharge ratio by analyzing groundwater level hydrographs.