Abstract:Using a three-dimensional corner point method and space objects rotating geometric transformations, the relationship between the fault disclination and gravity changes in the earth’s surface is established. The influence of gravity changes on fault depth and dip is discussed by rotating basis points on the left endpoint. The results show that gravity changes are significantly correlated with depth of fault. Gravity changes gradually reduce with the increasing depth of fault in single disclination, or W1,W2 and W3 modes respectively. Fault dips in different modes have different responses. Surface gravity distribution is related to the disclination mode and rotating basis point.