The product is a seat designed for children aged 2-6. Children aged 2-6 have a preliminary development in their physical behavior and movements. Children's hand-eye coordination ability, imitation ability and coordination of various senses are gradually growing up. The function of this seat is to provide a child stool as the main function to meet the physiological needs of children. There is a cylindrical puzzle in the center of the seat. The combination of the puzzle and the seat can not only meet the child's seat function It can also exercise children's thinking and creativity. It is a child seat with the function of developing intelligence.