Abstract: An ecologicalized multi-agent system is a co-evolutive multi-agent system which consists of many heterogenous agents.Ideas and cognitive models for ecological multi-agent systems，which form the fundamental frame for agents’ knowledge and believes，are put forward in this paper； and a checking structure for the model is designed.Finally，it illustrates that the model can enable agents’ cognitions to three levels： concept graphs，fuzzy-word computations and correlative frames.The model may establish foundations for agent-based prolem-solving.