A class chair includes a chair frame, seat, and a table. A rack is arranged below the chair frame, and the seat is arranged to a top of the chair frame. A table retaining plate is formed to a lower lateral side of the chair frame so as to fix a linking plate of a table frame of the table. The class chair provides a steady and durable assembly. Through the removable table frame and the rack, the assembly of the chair frame and the seat can be piled on top of each other so as to save the space and cost of transportation and storing.