Abstract: Groundwater reserves and buried depth are the key parameters of water cycle,and their evolution is of great significance to the relationship between water balance and accumulation in the basin. Abstract:Based on the data of water storage and groundwater burial depth retrieved from GRACE gravity satellite,spatial interpolation analysis,regression analysis and Mann-Kendall trend test were used to study the variation characteristics of groundwater storage and groundwater burial depth in the Huang-Huai-Hai Plain from 2003 to 2016. The results show that the groundwater reserves in the Huang-Huai-Hai Plains decrease significantly in recent 14 years with a rate of 1.2 cm/a,of which the rate of decline in Haihe Plains is 1.6 cm/a and that in Huaihe Plains is 0.9 cm/a. Groundwater depth increases by 0.09 m per year on average,showing a significant trend of increase,among which the average annual increase in Haihe Plains is 0.16 m,and the average annual increase in Huaihe Plain is 0.05 m. Based on the analysis of the change of regional water balance and the influence of human water extraction on groundwater,it can be concluded that the overextraction of groundwater is the main reason for the decrease in water storage in the Huang-Huai-Hai Plains. The research results have certain supporting effect on the understanding of the evolution law of regional water cycle and the management and development of water resources under the changing environment.