The invention discloses a method for synthesizing chlorohydrin by the reaction of 30 to 36 wt% industrial hydrochloric acid and ethylene oxide. The molecular ratio of the ethylene oxide to the chlorine hydride is kept between 1.01 and 1.05; in the method, a self-prepared supported catalyst is used, so that the side reactions are effectively inhibited and the conversion rate is improved; and a fixed bed reactor is used, the reaction temperature is controlled to between 30 and 60 DEG C, and the 47 to 53 wt% aqueous solution of chlorohydrin can be finally obtained. The method has the advantages of simplifying the production process and lowering production cost.