Device and method for providing goods information and system for marking certification code

PURPOSE: A product information supplying apparatus, method thereof, and system for marking an authentication code are provided to reduce product package cost and to recognize the marked code without separate medium. CONSTITUTION: A code registration module transmits product information of a code marking to a web server. The code registration module registers product information and code information of product. A code recognizer(110) recognizes a bar code or a QR(Quick Response) Code. An information request unit(120) requests product information of QR code to the web server. A display unit(140) displays product information which is received from the web server to a terminal screen.