Based on the data of mobile gravity survey in Eastern Guangdong after 1988

the temporal and spatial evolution of gravity field before and after Jiji M7.6 earthquake in 1999 are studied. The anomalous variation of gravity field from 1996 to 1999 were the precursor of far field of stress in Southeast China before Jiji M7.6 earthquake. Those variation of gravity

which appeared in group and deviated normal trend in 1996

may be a beginning of medium-term anomaly for 7.6 earthquake. The another reverse variation in 1998 were the transition of anomaly from medium-term to short-term and the variation may be a mark of anomalous progression before strong earthquake. Dynamic temporal and spatial evolution of gravity as the far-field gravity anomaly is more closely related with tectonic motion

its inhomogeneous and different variations in temporal and spatial evolution are mainly related to local deformation that resulted from the action of regional and focal stress field.