In recent years, the contradiction between supply and demand of water resources in Laixi city of Shandong province is aggravated due to low precipitation. In order to solve the problem of drinking water for the masses, to support and serve economic and social development of the region, a number of regional hydrogeological survey projects with the scale of 1∶50000 has been launched by Shandong Provincial Department of Natural Resources. In this paper, based on regional hydrogeology survey project of Shandong province (Xiadian, Rizhuang) with the scale of 1∶50000, on the basis of hydrogeology survey and exploration, combining with examples of exploration and mining, main reservoir structure types of country rock fissure water and occurrence regularity have been summarized. From quantity, quality, development and utilization of groundwater cost, the direction of rational development and utilization of groundwater in the area has been put forward, and high quality of groundwater and rich water sections have been circled. It will provide strong basis for decision-making for the relevant government departments and village's income.