Abstract: By researching of Comprehensive Evaluation decision-making Model-base Directory Management System,analyzed the features of storage of the model-base's data,the model-base is consisted of several subsystems which is heterogeneous and distribute,how to integrate these information of subsystems to form a complete model-base system,gives the LDAP-based data storage solutions.Web and LDAP directory service are adopted to implementation the organizing and locating of model data and evaluate information in the system,as well as releasing the algorithm information in the subsystems.Directory service uses "global-local" approach to manage the resource information to improve system's scalability and reliability.