A motion image displaying and storing apparatus includes an image input source for inputting motion image data (such as a camera, or a connection to a network), a storage device (for example, a fast read/write memory) for storing motion image data input by the input source, and a unit for selectively displaying either a motion image that is currently in the process of being stored into the storage device or a motion image read from the storage device. The displaying and storing apparatus can display a motion image that has already been stored in the storage device while the storage device is storing motion image now being input by the image input source.