In a stylus attachment structure for an IT product, the attachment structure formed on an IT product, such as, a laptop, a tablet PC and a PDA, comprises an attachment slot, a push-out member, a retaining member and an elastic part, wherein the push-out member is arranged in the attachment slot and the retaining member is slidably mounted at one end of the attachment slot for selectively retaining or releasing the stylus. In this way, when the stylus is not in use for a while, it can be obliquely plugged to one end of the attachment slot, it is easy for the user to pick up the stylus; alternatively, the stylus can be fully received in the attachment socket and further secured in place with a retaining member, thereby enabling the stylus to be attached properly so that it doesn't become loose.