Disclosed is a jig for matching images between a color camera and an infrared camera so as to match images into one image by correcting angles of view and degrees of distortion according to physical positional relations between the images. The jig includes a white background board having square or circular holes arranged by designated intervals in the horizontal and vertical directions and a black inner board detachably combined with the white background board so that holes formed on the white background board are expressed as black. The white background board and the black inner board are respectively kept in a normal temperature state and a refrigerated state and then combined so that, if the infrared camera is used to photograph, a black square or circular pattern may be extracted according to a temperature difference between the two boards.
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