The invention discloses a method for smelting high nitrogen steel, which comprises a smelting method of a high nitrogen steel which can effectively improve and guarantee the content of N in alloy, the technical proposal which is adopted comprises the following steps: firstly, smelting molten steel with an electric arc furnace or an induction furnace, secondly, simultaneously adopting another electric arc furnace or an induction furnace to smelt nitrogen containing alloy, adapting the sum of molten steel components in the step one and the step two with steel grade, thirdly, adding molten steel which is smelted in nitrogen containing alloy solution, and refining under the protection of nitrogen, and getting high nitrogen steel. The technical proposal of the invention which is adopted by the invention to smelt high nitrogen steel without needing complex pressurization and remelting equipment, the total smelting time is greatly shortened, which is only one half of the time for smelting high nitrogen steel in the prior art, the operation is simple, and chemical components in steel are stable, fluctuation of steel components among furnaces is small, which is beneficial for processing follow-up process. And meanwhile, the number of deoxidation reducing agent is greatly reduced, and smelting cost is lowered.