Abstract:In recent years, due to the aggravation of groundwater pollution, the contradiction of domestic water use in Guanshui rown in Yantai city in Shandong province has become increasingly prominent. It is urgent to find highquality groundwater to alleviate the problems of local residents water use. Through hydrogeological survey, geophysical exploration, implementation of exploration and mining combined well, pumping test and water quality test, the type of water storage structure and its occurrence law in Guanshui town and its surrounding areas has been found out preliminarily, water rich sections of highquality groundwater have been circled, the feasibility of water supply for Cretaceous bedrock fissure water has been demonstrated. It will provide a scientific suggestion for relevant government departments to make decisions and solve the water problem.