The embodiment of the invention provides a jig for positioning a steel sheet, a steel sheet positioning method and an electronic product. The jig comprises an upper cover plate, a lower cover plate and a positioning guide piece. A first groove is formed in the upper cover plate and is used for positioning a steel sheet. A second groove is formed in the lower cover plate and is used for positioninga pressing base body. The lower cover plate and the upper cover plate are matched through the positioning guide piece to position the steel sheet to a pressed body positioned at the upper part of thepressing base body. According to the embodiment of the invention, the steel sheet is positioned to the pressed body through the third-party tool of the jig, so that the problem that the requirement on the space of the whole machine is high when the steel sheet and the pressed body are directly positioned is avoided; and the space of the whole machine of an electronic product can be saved while the steel sheet is positioned.