The present invention is a negative electrode active material for a negative electrode material of a non-aqueous electrolyte secondary battery, including a silicon-based material expressed by SiO x where 0.5‰¤x‰¤1.6 and either or both of a crystalized fluorine compound and a compound containing -CF 2 -CF 2 - units in at least a part of a surface layer of the negative electrode active material, the silicon-based material containing at least one of Li 6 Si 2 O 7 , Li 2 Si 3 O 5 , and Li 4 SiO 4 . There can be provided a negative electrode active material that can increase the battery capacity and improve the cycle performance and initial charge and discharge performance when used for a lithium-ion secondary battery, as well as a lithium-ion secondary battery having a negative electrode using this negative electrode active material.