The hypergraph design method Of multibus structrue of reliable communication networks is investigated in this paper. With processor number and reliability given
a graph of minimum cost and best connection is constructed
which has minimum coritivity.The graph is taken as a representative graph of a type of hypergraphs
and the dual hypergraph of the hypergraph of minimum orders and ports can be obtained. Finally
themultibus structure corresponding to the dual hypergraph can be constructed.