Disclosed is an image processing method for a touch display product. According to the image processing method for a touch display product, during full-screen display of a screen, an image displayed on the screen can be scaled down by means of a corresponding trigger instruction to form, on the screen, a blank writing area for writing. In this way, writing on the screen of the touch display product can be very conveniently performed, and there is no need to interrupt displayed video signals. The written content and the original image content can be presented on the same screen, such that better lecturing and demonstration effects can be achieved, and the user experience of a user can be improved.