A novel case for sterilizing contact lenses (16) wherein a contact lens sterilization process using a hydrogen peroxide solution (44) can be carried out easily and rapidly while effectively preventing both damage to the lenses and deposition of a heavy metal from a metal catalyst (14) on the lenses. The contact lenses are horizontally supported in the hydrogen peroxide solution (44) on a bottom surface of a lens containing portion (26) which opens upward, and a contact preventing member (32) which prevents the contact lenses from coming into contact with the metal catalyst (14) is provided between the metal catalyst (14) and the lens containing portion (26).