Recent advances in a multi-agent system are standing on the basis how to treat several agents from a viewpoint of the agent approach. This paper proposes a new concept “Smart Control for Collective Agents” and a new methodology “Adaptive Strategic Mechanism for Collective Agents” from a viewpoint of adaptation in natural. Then, they are applied to a various kind of collective agents' problems. The smart control means that the collective agents explore their proper strategy through the adaptation under dynamic and ill-known environments, and that each agent makes an autonomous decision under the explored strategy as if he∕she has intelligence....