The invention relates to a method for recycling and utilizing waste liquor containing 4-vinyl cyclohexene. The method comprises the following steps (1) carrying out oxidation reaction by taking the waste liquor containing 4-vinyl cyclohexene as a raw material, heteropoly acid salt as a catalyst and hydrogen peroxide as an oxidant at the temperature of between 30 and 100 DEG C for 2 to 30 hours, wherein the mass ratio of the raw material to the catalyst to the oxidant is that the mass ratio of waste liquor containing 4-vinyl cyclohexene to catalyst to hydrogen peroxide is equal to 100:10-0.1:1.7-40; and (2) carrying out rectification on reaction solution oil phase by adopting a widely known conventional rectification method after the reaction to obtain over 98.5 weight percent 4-vinyl cyclohexene or/and over 98.5 weight percent 4-vinyl epoxycyclohexane. The method provides an effective means for making full use of butadiene by-products, saving resources and reducing environmental pollution.