The invention relates to a high efficiency preparing method for ferroaluminium. The high efficiency preparing method comprises the following steps that (1) an intermediate frequency furnace or an electric furnace is used for melting steel scrap into molten steel to be subjected to slag removal for standby application; (2) an aluminium pig is placed into an alloy ladle to be baked to be fused intomolten aluminum; (3) the alloy ladle containing the molten aluminum is conveyed to the position below a furnace opening of the intermediate frequency furnace or the electric furnace, molten steel in the intermediate frequency furnace or the electric furnace is directly flushed and doped into the alloy ladle to become alloy liquid, and slag gathering and slag removal are carried out; and (4) the alloy ladle is hoisted to a casting machine for casting, and preparation of the ferroaluminium is completed. By means of the high efficiency preparing method for the ferroaluminium, the technology is simple and practical, the production efficiency is high and is improved by 50%-100% compared with other methods; and in addition, the yield of alloys such as metal aluminium, magnesium and calcium is high, energy consumption is low, the production cost is low, and the problem of dusting of ferro-aluminium in air in the natural storing process is solved.