A support for a mobile device which is provided on a mounted portion of a mobile device or a case of the mobile device to support the mobile device, comprising: a fixing portion provided on the mounted portion; an extending portion extended while being drawn in or out in a longitudinal direction; a rotating portion provided between the fixing portion and the extending portion to relatively rotate the fixing portion; and an end support portion rotatably provided at an end of the extending portion, the end support portion including an end support member rotatably provided at the end of the extending portion, wherein the end support portion is rotated in a forward direction at the end of the extending portion to cover the extending portion upon the extending portion being drawn in, wherein the end support portion includes a receiving groove for receiving the extending portion, wherein the receiving groove is recessed in a surface facing the extending portion to receive the extending portion upon the end support member configured to cover the extending portion, wherein the extending portion has a plurality of sliding members, each of which having a plate shape and a different width so that each of the plurality of sliding members is drawn in or out to or from each other, wherein the plurality of sliding members include: a first sliding member of which one portion is provided on the rotating portion; a second sliding member having a width larger than the first sliding member; and a moving guide portion which guides the sliding of the first sliding member to the second sliding member in a longitudinal direction thereof; wherein the moving guide portion includes: a drawing in-out receiving portion which is provided in the second sliding member so that the first sliding member is drawn in or out in a received form; a guide groove which is provided on any one of an inner surface of the drawing in-out receiving portion and an outer surface of the first sliding member; and a guide protrusion which is provided on the other one of the inner surface of the drawing in-out receiving portion and the outer surface of the first sliding member so as to correspond to the guide groove; characterised in that: the end support portion further includes a support area expanding member rotatably provided on the end support member and separated from one side of the end support member in the case of supporting the extending portion 120 to expand a support area. a fixing portion provided on the mounted portion; an extending portion extended while being drawn in or out in a longitudinal direction; a rotating portion provided between the fixing portion and the extending portion to relatively rotate the fixing portion; and an end support portion rotatably provided at an end of the extending portion, the end support portion including an end support member rotatably provided at the end of the extending portion, wherein the end support portion is rotated in a forward direction at the end of the extending portion to cover the extending portion upon the extending portion being drawn in, wherein the end support portion includes a receiving groove for receiving the extending portion, wherein the receiving groove is recessed in a surface facing the extending portion to receive the extending portion upon the end support member configured to cover the extending portion, wherein the extending portion has a plurality of sliding members, each of which having a plate shape and a different width so that each of the plurality of sliding members is drawn in or out to or from each other, wherein the plurality of sliding members include: a first sliding member of which one portion is provided on the rotating portion; a second sliding member having a width larger than the first sliding member; and a moving guide portion which guides the sliding of the first sliding member to the second sliding member in a longitudinal direction thereof; a first sliding member of which one portion is provided on the rotating portion; a second sliding member having a width larger than the first sliding member; and a moving guide portion which guides the sliding of the first sliding member to the second sliding member in a longitudinal direction thereof; wherein the moving guide portion includes: a drawing in-out receiving portion which is provided in the second sliding member so that the first sliding member is drawn in or out in a received form; a guide groove which is provided on any one of an inner surface of the drawing in-out receiving portion and an outer surface of the first sliding member; and a guide protrusion which is provided on the other one of the inner surface of the drawing in-out receiving portion and the outer surface of the first sliding member so as to correspond to the guide groove; a drawing in-out receiving portion which is provided in the second sliding member so that the first sliding member is drawn in or out in a received form; a guide groove which is provided on any one of an inner surface of the drawing in-out receiving portion and an outer surface of the first sliding member; and a guide protrusion which is provided on the other one of the inner surface of the drawing in-out receiving portion and the outer surface of the first sliding member so as to correspond to the guide groove; characterised in that: the end support portion further includes a support area expanding member rotatably provided on the end support member and separated from one side of the end support member in the case of supporting the extending portion 120 to expand a support area.