The invention relates to a method for recovering dilute acetic acid through extraction by cyclohexyl acetate. The method is mainly used for solving the problems in the prior art that process flows are long and the recovery ratio of acetic acid is low. According to the method, by adopting the technical scheme that the method for recovering dilute acetic acid through extraction by cyclohexyl acetate comprises the steps of firstly, carrying out extraction on a byproduct, i.e., dilute acetic acid of a cyclohexanone device by taking cyclohexyl acetate as an extractant, then, carrying out rectifying separation so as to obtain acetic acid, and carrying out recovery and reutilization, wherein the content of acetic acid in raffinate phase wastewater of an extraction tower is lower than 100ppm, the content of cyclohexyl acetate in the raffinate phase wastewater of the extraction tower is lower than 1.0%, the rate of consumption of the extractant is lower than 0.10%, the content of acetic acid in the tower top of an acetic acid separating tower is not lower than 95.0%, the content of acetic acid in the tower bottom of the acetic acid separating tower is lower than 100ppm, and the recovery ratio of acetic acid is not lower than 99.0%, the problems are solved in a relatively good manner, so that the method can be applied to the industrial production of recovery of dilute acetic acid.