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Sn film electrodes with different thickness (2, 0.5, 0.25, 0.12 μm), as anode materials for lithium-ion batteries were prepared by electrodeposition onto copper foil collector. Their microstructures were observed by SEM and the performances were studied through charging-discharge experiments. Result show that the performances of Sn film electrodes can be improved by the thickness decrease, but the first reversible capacity loss was increased at the same time. The electrode of 0.5 μm thickness shows the highest discharge capacity and better cyclic stability: its discharge capacity is 749 mAh/g for the first cycle and keeps 578 mAh/g after 40 cycles.