本发明公开了一种丙基三乙酰氧基硅烷的制备方法,涉及硅烷交联剂的制备领域,该方法为:在带加热、搅拌、精馏装置的反应釜中加入丙基三氯硅烷和醋酸酐,丙基三氯硅烷和醋酸酐按摩尔比1∶3.1~3.5比例投入,反应温度控制在65~75℃,在常压下 The invention discloses a preparation method of propyl triacetoxysilane, which relates to the field of preparation of a silane crosslinking agent. The method comprises the following steps: adding propyltrichlorosilane into a reaction kettle with a heating, stirring and rectifying device, and Acetic anhydride, propyl trichlorosilane and acetic anhydride in a molar ratio of 1: 3.1 to 3.5, and the reaction temperature is controlled at 65 to 75 DEG C under normal pressure