The invention provides an influenza virus vaccine using nanometer emulsion as an adjuvant and a method for preparing the same. The influenza virus vaccine consists of the following components in percentage by mass: 1 to 30 percent of diluted influenza virus vaccine, 1 to 50 percent of oil phase, 20 to 70 percent of emulsifying agent and 20 to 70 percent of auxiliary emulsifying agent. In the influenza virus vaccine using the nanometer emulsion as the adjuvant, the adjuvant, namely the nanometer emulsion, has the advantages of little toxicity, mild properties, obvious solubility-enhancing effect on medicaments, good fluidity, extremely low irritation on bodies and the like, so that the immunization effect of the influenza virus vaccine is greatly improved; compared with the adjuvant-free influenza virus vaccine, the influenza virus vaccine of the invention has the advantages of small dosage and high bioavailability; compared with other influenza virus vaccines using the adjuvant, the influenza virus vaccine of the invention has the advantages of greatly improving bioavailability, lowering irritation, reducing adverse reactions, prolonging vaccine-releasing time, improving the targeting property of the vaccine, reducing an attrition rate and the like.