The detection of heavy metal components in groundwater is crucial for ensuring drinking water safety, assessing water quality conditions, promptly identifying pollution sources, providing scientific management basis, protecting the ecological environment, complying with regulatory requirements, and supporting scientific research. Therefore, strengthening the work on groundwater component testing is of great significance for maintaining water resource security and promoting sustainable development. TXRF technology is widely used in the detection of heavy metal components in groundwater. It can detect chromium, lead, cadmium and other heavy metal elements at the same time, providing scientific and reliable monitoring data for testing personnel, and effectively supporting water quality assessment and pollution prevention and control work.