The Chinese Wall Security Model has been regarcled as an important security policy model in business in-formation security．but it iS not an effective model and it lacks a mechanism for implementation．This paper Studies the conflict of interest relations，database organization and the access contr01 policy of the Chinese WallSecurity Policy—an Aggressive Model．We use role-based access control(RBAC)model to analyze the corltrol mechanism Further-more,the RBAC Model is configured by using the role hierarchies of the RBAC and its restraints．Finally，an experi—ment is implemented by RBAC which is configured to utilize the Chinese Wall Security Policy—all Aggressive Model．In the experiment we provide conflict of interest relations for four companies,and the experimental resultS show thatour model is more convenient and effective．