Abstract:2-(2-Hydroxyphenyl)cyclopropane-1-carboxlic acid (HCCA) was prepared from the starting material of 2-methoxystyrene via the chlorine-addition, cyclopropanation reaction with diethyl malonate, Krapcho decarboxylation and demethylation using thiophenol as nucleophiles under alkali conditions with a high total yield of 53%. The target product was also confirmed through 1H NMR, 13C NMR, GC-MS and HRMS. The synthetic process of HCCA can be performed under mild reaction conditions with conveniently available reagents and good yields, providing a potential route for the large-scaled syntheses.