Abstract: With the development of the Internet of Things(IoT)，how to "intclligentize" the sentient objects with the self-adaption abilities to change their own autonomously against the environment is a real challenge in the IoT researches. Based on the components theory, this paper brought up the FEI3DA(fcature environment belief desire action)structure and its definition of self-adaptive from the three-tier architecture of IoT, and established corresponding algorithm to describe it, at last demonstrated the self-adaption mechanism of these components with instance.

Key words: IoT, Component, FEBDA structure, Autonomous