In this article we study the scientificity of the rights and liabilities allocation of objects shared by multiagent with uncertain boundary and bring forward the notions of closure, sequentiality, average-symmetry and relevance of allocation form of rights and liabilities shared by multiagent. We set the conditions of complete type allocation form of rights and liabilities as possessing accordant closure, accordant sequentiality, accordant average-symmetry and accordant relevance, in development, we set the sigmacompleteness as the indicate of the scientificity of the rights and liabilities allocation of objects shared by multiagent with uncertain boundary. Through a series of mathematical argument, we bring forward the basic character of complete type allocation form of rights and liabilities and prove the “golden allocation” derivated by golden section method to be complete, by which we not only get the conclusion that there is existing the complete type allocation form of rights and liabilities of objects shared by usual multiagent, but also prove the evaluation and scoring method for scientific achievements used in Chinese University Arrangement to be scientific by Wu Shulian.