A multipurpose supportable cover having improved portability and usability, the cover including a front cover 20, a filler page portion 30, and a rear cover 40 that are bound by a binder 10, wherein a first iron piece 21 is installed on a lower end of the front cover 20, the rear cover 40 includes a main rear cover 42, a first sub-rear cover 43, and a second sub-rear cover 44 that are partitioned by first and second folding lines 40a and 40b, and a magnet piece 41 to be attached to the first iron piece 21 is installed on a lower end of the second sub-rear cover 44.