A rotating mechanism, used in a foldable terminal, wherein the foldable terminal comprises a display, the display comprises a neutral layer, the rotating mechanism comprises a limit base, a first swing arm, and a second swing arm, and the limit base is provided with a first arc-shaped groove and a second arc-shaped groove; the first swing arm comprises a first rotating shaft portion, the first rotating shaft portion is slidably mounted in the first arc-shaped groove and is configured to rotate with respect to the limit base, the second swing arm comprises a second rotating shaft portion, the second rotating shaft portion is slidably mounted in the second arc-shaped groove and is configured to rotate with respect to the limit base, and the first rotating shaft portion and the second rotating shaft portion rotate in opposite directions with respect to the limit base; and the first rotating shaft portion comprises a first arc-shaped part and a second arc-shaped part that are distributed in a circumferential direction of the first rotating shaft portion, the first arc-shaped part and the second arc-shaped part are fixedly connected, an axle center (C 1) of the first arc-shaped part and an axle center (C 2) of the second arc-shaped part are both located at the neutral layer, and a radius of the first arc-shaped part is different from a radius of the second arc-shaped part, wherein the second rotating shaft portion comprises a third arc-shaped part and a fourth arc-shaped part that are distributed in a circumferential direction of the second rotating shaft portion, the third arc-shaped part and the fourth arc-shaped part are fixedly connected, an axle center of the third arc-shaped part and an axle center of the fourth arc-shaped part are both located at the neutral layer and coincide with each other, and a radius of the third arc-shaped part is different from a radius of the fourth arc-shaped part. the first swing arm comprises a first rotating shaft portion, the first rotating shaft portion is slidably mounted in the first arc-shaped groove and is configured to rotate with respect to the limit base, the second swing arm comprises a second rotating shaft portion, the second rotating shaft portion is slidably mounted in the second arc-shaped groove and is configured to rotate with respect to the limit base, and the first rotating shaft portion and the second rotating shaft portion rotate in opposite directions with respect to the limit base; and the first rotating shaft portion comprises a first arc-shaped part and a second arc-shaped part that are distributed in a circumferential direction of the first rotating shaft portion, the first arc-shaped part and the second arc-shaped part are fixedly connected, an axle center (C 1) of the first arc-shaped part and an axle center (C 2) of the second arc-shaped part are both located at the neutral layer, and a radius of the first arc-shaped part is different from a radius of the second arc-shaped part, wherein the second rotating shaft portion comprises a third arc-shaped part and a fourth arc-shaped part that are distributed in a circumferential direction of the second rotating shaft portion, the third arc-shaped part and the fourth arc-shaped part are fixedly connected, an axle center of the third arc-shaped part and an axle center of the fourth arc-shaped part are both located at the neutral layer and coincide with each other, and a radius of the third arc-shaped part is different from a radius of the fourth arc-shaped part.