A　micro-nano　combined　composite　with　Li-Si　alloy　nano-domains　in　three-dimensional　carbon　network　was　prepared　as　a　novel　electrode　material.　The　carbon　network　constrained　the　volume　contraction　and　promoted　effectively　charge　transfer　of　the　whole　active　material.　Meanwhile,　the　abundant　interfaces　between　Li-Si　alloy　and　carbon　bound　by　Li-C　ionic　bonds,　not　only　enhanced　the　delithiation　at　interface　but　also　ensured　the　structural　integrity.　The　present　composite　exhibited　excellent　electrochemical　performance.　The　specific　capacity　at　the　first　lithiation　was　as　high　as　1133　mA　hg(-1)　at　a　current　density　of　0.1　A　g(-1),　which　is　superior　to　those　reported　for　the　core-shell　structured　nanoparticles.　The　Coulombic　Efficiency　at　the　first　cycle　was　90.4%　and　kept　stable　at　more　than　99.0%　after　only　10　cycles.　The　capacity　retention　was　nearly　twice　as　that　of　the　incompact　mixture　of　Li-Si　nanoparticles　and　carbon.　The　energy　density　of　the　full　cell　constructed　by　the　present　composite　and　sulfur　was　evaluated　to　be　3　times　as　high　as　that　of　the　commercial　lithium-ion　batteries.　This　work　provides　a　new　universal　strategy　for　developing　Li-rich　anode　materials　with　high　combination　properties　and　low　cost.