As　a　fundamental　requirement　for　providing　security　functionality　in　sensor　networks,　key　management　plays　a　central　role　in　authentication　and　encryption.　In　this　paper,　we　propose　the　Adaptive　Key　Selection　(AKS)　scheme　and　the　Adaptive　Key　Selection　algorithm　for　secure　multiple　deployment　in　sensor　networks　that　target　at　providing　high　connectivity　between　different　deployment　sets　of　sensor　nodes.　Our　simulation　shows　that　the　AKS　scheme　can　greatly　improve　the　connectivity　of　sensor　nodes　while　maintaining　the　security　of　an　existing　multiple　deployment　scheme　at　the　same　time.