A　new　layers　method　is　presented　for　multipartite　separability　of　density　matrices　from　simple　graphs.　Full　separability　of　tripartite　states　is　studied　for　graphs　on　degree　symmetric　premise.　The　models　are　generalized　to　multipartite　systems　by　presenting　a　class　of　fully　separable　states　arising　from　partially　symmetric　graphs.