Provided is a preparation method of an ethyl acetate gas sensitive material.The method comprises the steps that zinc acetate and polyvinylpyrrolidone are taken and added to deionized water to prepare a mixed solution; the prepared mixed solution is subjected to drying treatment, moisture is completely evaporated, and a mixture of zinc acetate and polyvinylpyrrolidone is obtained; the mixture of zinc acetate and polyvinylpyrrolidone is put into a calcinator for calcination, and a zinc oxide nano single crystal is obtained; the prepared zinc oxide nano single crystal is mixed with a chloroauric acid solution, a lysine solution and a potassium borohydride solution to be uniform, after mixing is conducted, sediments are separated out and put into the calcinator for calcination, and a gold nanoparticle modified zinc oxide nanorod is obtained.According to the preparation method of the ethyl acetate gas sensitive material, the operation method is simple, the yield is high, and the production cost is low.The prepared zinc oxide nanorod is good in gas-sensitive property to ethyl acetate and high in sensitivity, and the sensitivity and concentration present a good linear relation.