An image recognition device, an image recognition program and an image recognition method; the image recognition method aims at the image respectively describing each character string as a plurality of logic elements composing the logic structure and recognizes each logic element based on the logic structure model provided corresponding to the logic structure mode; the method comprises the following steps: collecting information processed with the logical structure model of images of a logical structure, acquiring a recognition result when recognizing an image of a logical structure corresponding to the logic structure model before updated based on the updated structure model by processing information collected with a post-update logical structure model when the mode corresponding to the new logical structure to update the logic structure model into the new logic structure model; comparing when the recognition result to process the information collected by the logic structure model before updating is matched with the recognition result obtained by the logic structure model after updated; outputting the warning message expressing the warning of the updated logic structure model tothe output unit when the compared result is not matched.