Abstract: In order to determine the earthquake risk region, the relationship between the gravitational high and earthquakes occurring nearby is statistically studied by using the gravity data of the North China Plain area. The statistical results obtained indicate that the gravitational high must satisfy certain conditions in case of occurrence of an earthquake of magnitude M_s≥4 near the anomaly area. It is found that the greatest magnitude and total seismic energy released are highly correlated to the product of the gravitational high area with the square root of its intensity. Most of earthquakes of magnitude M_s≥5 took place near the position with greater form-vectors of gravitational high.According to the statistical results we can evaluate earthquake risk regions in the North China Plain area and indicate the conditions for applying these results. Furthermore, the physical implications of statistical parameters of gravitational high are also discussed herein.