The disclosure discloses an anti-misoperation combined dining chair for children. The dining chair comprises a seat and a tabletop which are arranged in sequence on a supporting component. The support component comprises four No. 1 supporting tubes and No. 2 supporting tubes. One end of each of the four No. 1 supporting tubes is respectively inserted into one of four corners of the seat, and the other end of each of the four No. 1 supporting tubes is internally provided with a corresponding No. 2 supporting tube in an inserting manner respectively. The tabletop is arranged at peripheries of the No. 2 supporting tubes in a sleeved manner and is connected with the No. 1 supporting tubes and the No. 2 supporting tubes through locking mechanisms respectively.