As the number of agent application grows, agent management scheme is required for the efficient manipulations of it. In this paper, we studied an agent management scheme for monitoring and control of the working of an agent. For efficient management of an agent, we investigated the characteristics of the agent, and defined management information according to the specification of the SNMP SMI standard. Implemented scheme uses agent master system for the efficient management of many agent applications. We applied the defined management scheme using agent system that we developed in our laboratory, and found that our scheme was efficient for the monitoring and management of the agent applications.