The　optimization　of　anode　materials　such　as　Sn,　P　and　Sn4P3　in　terms　of　capacity　and　cyclability　is　crucial　to　improve　the　overall　performance　of　sodium-ion　batteries.　However,　the　delicate　fabrication　of　these　materials,　including　the　balanced　crystalline/amorphous　domains,　reasonable　particle　size　and　distribution,　complementary　components　exhibiting　synergetic　reactions,　among　others,　still　greatly　retards　the　realization　of　maximum　performance.　Herein,　a　series　of　Sn/P-based　composite　materials　with　a　plum　pudding　configuration　were　fabricated　to　achieve　controlled　crystalline/amorphous　structures　as　well　as　optimized　size　and　distribution　in　a　carbon　framework.　By　using　a　facile　and　low-cost　ball　milling　method,　the　structural　transformation　of　Sn4P3　into　phase-separated　crystalline　Sn　and　amorphous　P　in　a　carbonaceous　framework　can　be　finely　controlled,　producing　a　series　of　binary　(Sn4P3/C),　quaternary　(Sn4P3/Sn/P/C)　and　ternary　(Sn/P/C)　composites.　Due　to　the　complementary　components,　crystalline/amorphous　adjustment,　crystallite　sizes　and　well-integrated　interfaces,　the　quaternary　Sn4P3/Sn/PIC　composite　showed　the　best　electrochemical　performance,　with　a　noticeable　long-cycle　performance　of　382　mA　h　g(-1)　and　86%　capacity　retention　for　nearly　300　cycles.　Different　from　binary　and　ternary　composites,　the　discharge　of　quaternary　composite　generates　no　noticeable　signals　of　Na15Sn4　and　Na3P　in　the　ex-situ　X-ray　diffraction　patterns,　suggesting　the　crystallite　growth　of　sodiation　products　can　be　depressed.　Moreover,　Sn4P3　in　the　quaternary　composite　can　be　partially　regenerated　in　the　desodiation　reaction,　implying　the　significant　short-range　interaction　and　thus　better　synergetic　reactions　between　Sn　and　P　components.　The　results　demonstrate　that　the　design　and　organization　of　crystalline/amorphous　structures　can　serve　as　an　efficient　strategy　to　develop　novel　electrode　materials　for　sodium　ion　batteries.　(C)　2019　Published　by　Elsevier　Ltd　on　behalf　of　The　editorial　office　of　Journal　of　Materials　Science　&　Technology.