The invention discloses a method of recycling zinc by comprehensively utilizing steelmaking dust. The method comprises the following steps that steelmaking dust is mixed with a reducing agent and an additive and is pressed into pellets, the pellets are fed into a vacuum carbon tube furnace to carry out vacuum roasting to obtain gaseous elementary zinc volatile matter, the gaseous elementary zinc volatile matter passes through a condensation collector to be condensed to a solid, and the solid is obtained as a high-purity zinc ingot. The method promotes the reduction of zinc in steelmaking dustand recycles the steel-making dust, so that the high-quality zinc ingot is obtained, energy consumption during the control of vacuum condition in the steelmaking dust treatment process is reduced, theprocess is simple, the operation is simple and convenient, the vacuum reduction can effectively evaporate the zinc in the steelmaking dust, the purpose of condensing and collecting elementary zinc isachieved, the recovery rate of the zinc in the steelmaking dust is up to 97. 76%, the problem that in the prior art, the cost is high, the pollution is heavy, the energy consumption is high and threewastes are large when zinc-containing steel-making dust is treated are solved is effectively solved, and finally, the purpose of waste recycling is achieved.