Main sedimentary rocks in Luquantun monocline karst water system in the lower reaches of Dawenhe River Basin are Cambrian Ordovician strata. The aquifer lithology is mainly limestone and dolomite, which are controlled by the strata and structures. There are significant differences in the horizontal and vertical directions of karst fissures. The groundwater types include loose rock pore water and carbonate rock fissure karst water, with the latter being main available groundwater type in the area. Based on previous geological and hydrogeological exploration research results, combining with hydrogeological survey with the scale of a 1∶50000 conducted in Luquantun monocline karst water system, by using hydrogeological surveys, groundwater dynamic monitoring, hydrogeological drilling and pumping tests, hydrogeological conditions, groundwater types and water rich characteristics of the water bearing formations in this hydrogeological unit have been systematically identified. Three water rich areas have been circled, they are karst fissure water rich area in Hanzhuang village, fissure karst water rich area in Beizhang village, and karst fissure water rich area in NanlizhuangWanghai village. The water rich mechanism has been analyzed, and three types of water storage structures, namely fault water blocking type, rock vein water blocking type, and graben type fault block type have been summarized. It will provide some references for water exploration and well selection in the area, and significant social and economic benefits have been achieved.