The invention provides ambroxol hydrochloride tablets and a preparation method thereof, and relates to the field of a medicine production technology. The preparation method comprises the steps of mixing raw materials of the ambroxol hydrochloride tablets at the rotational speed of 10-18r/min for 11-35min, and directly performing tabletting, wherein the raw materials of the ambroxol hydrochloride tablets comprise ambroxol hydrochloride, lactose, pregelatinized starch, colloidal silicon dioxide and magnesium stearate. According to the ambroxol hydrochloride tablets and the preparation method thereof disclosed by the application of the invention, through low rotational speed (10-18r/min), the raw materials of the ambroxol hydrochloride tablets are mixed for 11-35min, and the pregelatinized starch and the colloidal silicon dioxide are selected for cooperation, so that the fluidity and the tabletting properties of the raw materials can be improved, the situation that the powder is directlytabletted can be facilitated, the whole technology is simple, quality control is simple, and energy consumption is lower; and besides, in the preparation course, conditions of wet mixing, heat dryingand the like are not used, and the stability of the prepared ambroxol hydrochloride tablets is better.