Groundwater recharge research is the basis of evaluating groundwater resources, managing water resources and making sustainable utilization project of water resources. It is also critical to establish the groundwater model and assess the environmental impacts. This paper reviewed the current situation and trend of groundwater rechaige research at home and abroad based on research methods, spatial-temporal dynamic changes, progress and mechanisms. At the same time, the present situation and its existing problems of karst groundwater recharge research were discussed，and the shortages were analyzed on studying the recharge research in the Northern China. Based on the characteristics of karst development and groundwater occurrence, this paper recommended analyzing the iniiltration progress and mechanism in a typical karst area, revealing the recharge mechanism under the different geological and climatic conditions, studying the spatial-temporal change of rainfall infiltration coefficients and discussing its variabilities, carrying out the hydrologic function research of aeration zone in carbonate outcrop areas, and also discussing the hydrologic effects of afforestation in the karst area. These would provide new thoughts for quantitative researches on karst groundwater recharge and important scientific basis for revealing the recharge mechanism and sustainable utilization of karst groundwater.