Abstract: By analyzing the uncertain region topological relation,aiming at "egg-folk" model shortcoming that its logical relation among 46 topological relations are not clear,this paper obtains 93 topological relations through dynamic change of closest topological distance graph,by cutting out 41 topological relations contain tangency relation and 6 repetitive topological relations,46 topological relations are obtained too,which are consistent with Cohn theory,thus "egg-folk" model is popularized.