Abstract: A management model using mobile Agent which combines reactive grid resource discovery and proactive discovery is presented based on grid cluster theory.The mobile Agent technology is employed to collect information of grid resources and store them in the cluster's LDAP index server,and the index information of cluster resource is stored in the neighbor clusters'LDAP index server.The cache data works as the inspiring factor of the search algorithm for grid resources discovery and scheduling.So that the discovery procedure of grid resource discovery can be accelerated,and the availability factor of grid can be heightened.The results of simulation prove that the management model is available with high performance.