The present invention relates to an automatic file supplying equipment. Said equipment has a read-out device, and said read-out device can make transferred file stop on the reading position on the pressure plate, and can one-to-one successively read out two-side images of the file. Said automatic file supplying equipment includes a regulation element, it is placed at up-stream position of readingposition on the pressure plate so as to can regulate the edge of the file. It is characterized by that said regulation element can regulate edge of file, can make the file provide its one side surface, after said side surface is red out, it can make said file reversedly pass through the pressure plate and provided another side surface for reading-out. Besides, it also has a supplying element for opening supply channel.