A supporting device for a mobile terminal comprising a main board body, a connecting board assembly (20, 30), a first supporting body and a second supporting body, one end of the main board body being connected with one end of the connecting board assembly (20, 30) through a first bendable part, the other end of the connecting board assembly (20, 30) being connected with one end of the first supporting body through a second bendable part, the other end of the first supporting body being connected with one end of the second supporting body through a third bendable part, and the other end of the main board body being connected with the other end of the second supporting body through a fourth bendable part; wherein the first supporting body comprises a first bottom edge, a first top edge parallel to the first bottom edge, and a first left side edge and a first right side edge connecting the first bottom edge and the first top edge respectively, and the first supporting body has a first folding line extending from the intersection point of the first bottom edge and the first left side edge to the first top edge and intersecting with the first top edge; wherein the second supporting body comprises a second bottom edge, a second top edge parallel to the second bottom edge, and a second left side edge and a second right side edge connecting the second bottom edge and the second top edge respectively, and the second supporting body has a second folding line extending from the intersection point of the second bottom edge and the second left side edge 503 to the second top edge and intersecting with the second top edge; wherein the first left side edge, the first top edge and the first folding line enclose a first area, the second left side edge, the second top edge and the second folding line enclose a second area, and the first area and the second area are capable of being bent towards the main board body together, characterized in that, the bending of the folding lines (405, 505) of the supporting device realize a adjustment at multiple angles, when adjust the folding lines (405, 505) towards the main board body together the supporting device has two supporting angles and provides lateral support. wherein the first supporting body comprises a first bottom edge, a first top edge parallel to the first bottom edge, and a first left side edge and a first right side edge connecting the first bottom edge and the first top edge respectively, and the first supporting body has a first folding line extending from the intersection point of the first bottom edge and the first left side edge to the first top edge and intersecting with the first top edge; wherein the second supporting body comprises a second bottom edge, a second top edge parallel to the second bottom edge, and a second left side edge and a second right side edge connecting the second bottom edge and the second top edge respectively, and the second supporting body has a second folding line extending from the intersection point of the second bottom edge and the second left side edge 503 to the second top edge and intersecting with the second top edge; wherein the first left side edge, the first top edge and the first folding line enclose a first area, the second left side edge, the second top edge and the second folding line enclose a second area, and the first area and the second area are capable of being bent towards the main board body together, characterized in that, the bending of the folding lines (405, 505) of the supporting device realize a adjustment at multiple angles, when adjust the folding lines (405, 505) towards the main board body together the supporting device has two supporting angles and provides lateral support.