An anode active material for a secondary battery that has improved cycle swelling properties and rapid charge performance, an anode comprising same, and a method for manufacturing same. The anode active material is a mixture of artificial graphite and spherical natural graphite, wherein the spherical natural graphite has an average particle diameter (D 50) of 12 μm or less, with D 90-D 10 value ranging from 5 μm to 12 μm.