Child dining chair

The utility model discloses a child dining chair which comprises supporting legs, supporting rods are arranged on the inner sides of the two ends of the top of each supporting leg, racks are fixedly connected to the inner sides of the two sides of each supporting rod, an installation box is arranged on the outer side of each supporting rod, a height adjusting mechanism is installed in each installation box, and each height adjusting mechanism comprises a transmission gear meshed with the corresponding rack. A mounting seat is connected between the two mounting boxes, and a seat backrest is arranged at the top of the mounting seat. According to the dining chair, through the structural design of the height adjusting mechanism, the dining chair has the function of continuously adjusting the height, the height can be adjusted without being lifted by an adult when a child sits in the backrest of the chair, labor force is greatly saved, the convenience in use is improved, and through the structural design of the co