According　to　the　technical　features　and　application　architecture　for　Ambient　Intelligence　(AmI),　the　conception　of　AmI　and　its　research　condition　is　introduced　and　the　main　feature　is　discussed　in　this　paper　firstly.　Meanwhile,　the　context-aware　AmI　prototype　(namely　AmI　Space)　based　on　Multi-Agent　architectureis　expounded,　and　the　structure　and　collaborating　mechanism　for　those　agents　are　proposed.　It　is　demonstrated　by　practice　that　the　MAS-Based　architecture　fits　for　the　characters　of　modularization,　distribution　and　complexity　owned　by　the　AmI　computing　units,　and　a　basis　for　further　researching　AmI　is　provided.