The utility model discloses a public chair with a table board. Chair comprising a seat, a supporting plate is fixedly connected to the lower surface of the seat; two bottom supporting legs are fixedlyconnected to the bottom of the supporting plate; the two bottom supporting legs are fixedly connected with one end of a supporting rod; handrails are fixedly connected to the other ends of the two supporting rods; the two armrests are connected with a seat back plate; supporting legs are mounted on the chair seat back plate; the utility model is suitable for people to have a rest in daily life; when a trip is tired, the user feels tired; when the chair back plate is rotated to be used as a table plate, the chair back plate can be used as a dining table or an office table, and when a tourist carries a large amount of luggage, the luggage can be placed on the table plate, so that the luggage cannot be contaminated, the chair space cannot be occupied, more people can have a rest, and the public chair has more purposes and functions.