Based on TME model

this paper introduces the concept and definition of trusted management and defines it is the getting

evaluating and implementing of trust intention.The trust management model in terms of this definition is applied to an existing new pattern grid security trusted infrastructure—NGST dividing the grid environment into multiple self-ruled domains

each having a trusted proxy to deal with all the trust relationship issues in the specific domain.Then the paper describes the inner-domain trusted management that can protect sensitive information in security credence by Credential Access Policy.Finally

the paper analyzes the security of this method by automata syntax

and proves that the new model is secure

well-self-ruled

and can dispossess from self-ruled domain the entities that have some improper actions.