Baby dining chair

A baby dining chair comprises a chair seat on the top and a chair support which is arranged on the bottom and used for supporting the chair seat, wherein the chair seat comprises a seat and a backrest frame with the lower part being connected with the rear part of the seat in a rotating way along a first shaft, the seat comprises a seat body and two side handrail frames which are respectively arranged on the left side part and the right side part of the seat body, a locking mechanism for locking the relative position of the backrest frame and the seat is arranged between the backrest frame and the seat, and the baby dining chair also comprises a backrest front support, and at least one of the rear part of the seat and the lower part of the backrest frame is in rotation connection with the lower part of the backrest front support. When the backrest front support stays on a first working position, the baby dining chair is still used as a dining chair, a baby sits on seat, the backrest front support is turned forwards, a recliner is formed between the backrest frame and the backrest front support to be used for a small child unable to sit to use, and convenience in use can be realized.