In order to assess the water level fluctuations and groundwater quality in Cu Yen commune. While groundwater quality is measured in 8 locations: Good Yen, Gieng Xa, Go Trang, Gua, Go Mo, Phu Ngoc, Hang Da, Suoi Re. The study period lasts from January to March 2018. The research results have reflected the characteristics of water level and quality of groundwater in Cu Yen commune, varying according to space and time, thereby giving sustainable management solutions for exploitation and use of groundwater sources to ensure the demand for use and health of people.