A child seat includes a seat shell, a retractor assembly connected with the seat shell, two anchor strap portions extending outward from a rear of the seat shell, and an adjustment strap extending outside the seat shell. Each of the two anchor straps is provided with a fastener operable to attach with an anchor structure of a vehicle. The two anchor strap portions extend outward from a rear of the seat shell, and are provided with two fasteners operable to attach with an anchor structure of a vehicle, the anchor strap portions being connected with the retractor assembly. The adjustment strap is operable to actuate the retractor assembly to retract the anchor strap portions toward an interior of the seat shell.