Disclosed is an image puzzle-type keycode, and a system and a method for securing information. In the system and method for securing an image using the image puzzle-type keycode, an original image (10) including a photograph, a picture, a character, a number, a fingerprint, or an iris image is divided into image pieces and the divided image pieces are re- arranged so as to generate a keycode image (20), and the original image (10) is restored from the keycode image (20) as necessary. Therefore, the system and method can efficiently prevent information from being leaked using the keycode image (20), thereby performing the identity identification and authentication process while maintaining the security not to disclose personal information or personal physical information such as a fingerprint, the iris of eyes.
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