Provided is a cushion structure, which has a cushion base, a bottom support stand, and an adjusting device. The bottom support stand is mounted under the cushion base. The adjusting device is mounted between the cushion base and the bottom support stand. The adjusting device has a back pivot module and a front adjusting module. The back pivot module is connected to the cushion base and the bottom support stand and is mounted on the cushion base and the bottom support stand. The front adjusting module is mounted on a front end of the cushion base and the bottom support stand. The front adjusting module is used to adjust an inclined angle of the cushion base. So the cushion structure can meet needs of different users of different body shapes or with different demands.