The invention provides a method for synthesizing 
carvacrol by limo nene epoxides. The method comprises the following steps: step 1, under the action of a Lewis acid catalyst A, limo nene 
epoxide is heated up for open-loop 
rearrangement reaction to produce isodihydrocarvone, after reaction, 
white oil is added into the reaction liquid, 
vacuum distillation is conducted to obtain an isodihydrocarvone end product, and the catalyst A remains in the residue; step 2, isodihydrocarvone prepared in the step 1 and a catalyst B are dissolved in a 
solvent, the 
solvent is heated up for 
dehydrogenation oxidation to produce 
carvacrol, the reaction process is monitored by 
gas chromatography, when the content of isodihydrocarvone is 30-40%, the reaction is terminated, the catalyst B is filtered and separated out, 
vacuum distillation is performed on the filtrate, isodihydrocarvone and the 
solvent which are not subjected to reaction are reclaimed, and 
distillation is further conducted to obtain a 
carvacrol end product. The 
raw material is low in price and easily accessible, the synthesis process is environment-friendly, the catalysts can be recycled, and the method provided by the invention is suitable for industrial production.