The new process of hydroxytyrosol synthesis had been discovered, which starts from catechol protection, followed by 3-bromation to give 1-Bromo-3,4-(methylenedioxy)benzene, then preparation of Grignard reagent and reaction with ethylene oxide and, finally, deprotection. Hydroxytyrosol was obtained by five-step reaction with high purity in the overall yield of 24%. The title compound was characterized with IR and MS.