Amorphous　carbon-coated　nano-scale　SnO2　powders　were　prepared　by　pyrolyzing　the　mixtures　of　starch　and　Sn(OH)4.　The　structure,　morphology　and　properties　of　the　sample　were　investigated　by　XRD,　SEM,　TEM,　STEM-EDX　and　discharge-charge　cycle.　The　results　of　XRD,　SEM,　TEM　and　STEM-EDX　show　that　amorphous　carbon　of　the　sample　is　flaky　and　amorphous　Carbon-coated　SnO2　particles　(20-50　nm)　are　distributed　in　amorphous　carbon　uniformly.　The　results　of　discharge-charge　cycle　show　that　the　different　proportions　between　SnO2　and　amorphous　carbon　lead　to　different　discharge-charge　performances.　The　specific　capacity　of　the　sample　(SnO2:C=1:1)　reaches　404　mAh/g　which　is　even　stable　in　twentieth　cycle.