The invention relates to a method for increasing the yield of a medical sodium hyaluronate refined product. The method comprises the following steps: re-dissolving raw materials; sterilizing and filtering; adding ethanol for ethanol precipitation; filtering; washing; and drying to obtain a dried refined product powder. According to the method, when a re-dissolved solution flows in the ethanol precipitation stage, the concentration of an ethanol precipitation liquid is increased by a method of draining supernatant and adding ethanol, so that precipitated particles cannot be easily adhered and have uniform granularity, and the ethanol precipitation liquid can easily flow through the filter plate of a filtering-washing-drying machine. The method has the advantages of low production cost and short drying time, and can be used for reducing ethanol residues of a refined product and remarkably improving yield, so that the aim of improving yield and quality can be achieved.