A multifunctional stand frame for a tablet electronic device comprises a seat; a bottom of the seat serving to connect a back side of a tablet electronic device; the seat having a plurality of retaining holes; in installing, the seat being connected to the tablet electronic device by using a connecting unit to pass through the retaining hole of the seat and a locking hole of the tablet electronic device; so that the seat is installed to the tablet electronic device; a disk being positioned above an upper side of the seat and being rotatably installed to the seat; a center of the disk having a through hole; a fixing shaft extending from an upper side of the seat and penetrating through the through hole of the disk; the disk being loosely arranged to the seat through the retaining hole and being rotatable with respect to the fixing shaft.