Image information display and interaction device and image information display and interaction method

The invention provides an image information display and interaction device which comprises a display module. The display module comprises an image display region for displaying fusion images, and at least one function key is arranged in the image display region and is used for adjusting fusion image display modes. The image information display and interaction device has the advantages that the display modes can be quickly adjusted by users while image registration results are observed by the users, and the image information display and interaction device is convenient to operate; the function keys are arranged at appropriate positions of the image display region according to effects of the function keys, and accordingly the display modes can be intuitively adjusted by the users.