A method of preventing and/or treating a cancer including co-administering a c-Met inhibitor and a c-Myc Inhibitor to a subject in need thereof, a pharmaceutical composition comprising a c-Met inhibitor and a c-Myc inhibitor, and a kit comprising a pharmaceutically effective amount of a c-Met inhibitor as an active ingredient, and a second pharmaceutical composition comprising a pharmaceutically effective amount of a c-Myc inhibitor as an active ingredient, packaged together.