Abstract: In order to study the characteristics of groundwater environment in the coastal zone of Shandong Province, its groundwater dynamic field and hydrochemical field were analyzed based on monitoring data of different types of groundwater and combined with regional hydrogeological conditions.The results showed that the dynamic changes of groundwater level had obviously positive correlation with atmospheric precipitation, and it was also restricted by factors such as topography, groundwater exploitation intensity, etc.The hydrochemical characteristics of groundwater showed zonation from hilly region to the coastal area.In the past 40 years, the content of anion HCO-3 showed gradually decreasing tendency and the content of Cl- showed gradually increasing tendency; the content of cation Ca2+and Mg2+ showed gradually decreasing tendency, and the content of Na+gradually increasing tendency.The dynamic hydrochemical characteristics were mainly influenced by natural factors and human activities, with human influence being more significant.