Abstract: With rapid development of society and economy, ever-increasing demand on groundwater resources may lead to problems such as overexploitation and groundwater pollution. It is necessary to formulate and implement more scientific and reasonable control and protection measures for water resource safety. This paper systematically analyzes the current situation of groundwater resources in China, and proposes countermeasures for the safety assurance of groundwater resources. It is urgent to deepen the investigation and monitoring of groundwater resources, more accurately evaluate the current situation of groundwater resources in future, and further refine the overexploitation areas, strategic reserve areas, and protection areas of groundwater. We should continuously improve ecological restoration technology and intelligent supervision platform for water resource protection based on big data fusion, contributing to ensuring water resource safety.