The invention discloses a study chair for correcting sitting posture. The study chair comprises a moving base, a stand column, a cushion, a backrest, a master controller, a first power supply and a multi-directional linkage switch; the cushion comprises a shell, a matrix, a base plate, a soft cushion, a vertical supporting spring rectangular deploy and control array, an arc elastic metal sheet rectangular deploy and control ring, a pressure sensor spring deploy and control unit and a vibrator deploy and control unit; the vertical supporting spring rectangular deploy and control array is composed of a plurality of vertical springs distributed in a rectangular array; the arc elastic metal sheet rectangular deploy and control ring is composed of a plurality of arc elastic sheets distributed in a rectangular ring shape, the pressure sensor spring deploy and control unit is composed of four pressure sensor springs correspondingly deployed and controlled in front, rear, left and right of the cushion, and the vibrator deploy and control unit is composed of vibrators correspondingly deployed and controlled in front, rear, left and right directions of the cushion. According to the study chair, a user can be reminded by vibration through the different pressure on the front, rear, left and right parts of the cushion, and thus the user is helped to better correct the sitting posture.