This work attempts to provide a systematical view of the intersection of artificial life (A-Life) and artificial intelligence (AI), focusing on the highlight of this emerging field: adaptive behavior system and adaptive autonomous agent. First of all, A-Life and AI are delineated, and the AI roots of A-Life and A-Life roots of AI are discussed. Based upon the discussions, adaptive behavior system and adaptive autonomous agent are introduced as the intersection of A-Life and AI. Finally useful guidelines of the methodology for this emerging field are proposed.