Sitting posture correcting seat

The invention discloses a sitting posture correction seat, and belongs to the technical field of articles of daily use. The seat cushion mainly comprises a base, a seat cushion and a hinge part, the seat cushion is installed at the upper end of the base through the hinge part, so that the seat cushion can swing back and forth on the base, and when the sitting posture of a user is correct, the gravity center of the upper body of the user coincides with the swing axis of the seat cushion, or the gravity center of the upper body of the user is located at the position, close to the rear side of the seat cushion, of the swing axis of the seat cushion. When the sitting posture of the user is incorrect, the gravity center of the upper body of the user is located at the position, close to the front side of the cushion, of the swing axis of the cushion, the cushion swings to a second position towards the front side of the cushion on the base, and then the user can stably sit on the cushion; and the seat cushion is in