A cosmetic container includes a bottle, a cap unit and a magnetic member. The bottle is adapted for accommodating a magnetic nail polish having magnetic particles. The cap unit includes a cap body that removably covers the bottle, and a finger support that is mounted on the cap body. The magnetic member is mounted on the cap unit and includes a magnetic patterning portion. The magnetic member is disposed such that the fingernail of a finger that is supported on the finger support is proximate thereto, such that the magnetic patterning portion is able to attract the magnetic particles of the magnetic nail polish applied on the fingernail so as to forma corresponding pattern.