摘要：【中文】本发明提供一种超声波杀菌发酵罐，属于生物发酵领域；本发明包括：罐体、内胆和搅拌器；内胆安装于所述罐体内，所述内胆为两端开口的圆管状结构；内胆的顶端为进液口，底端为排液口；所述搅拌器可滑动的套设于所述内胆内，并可沿所述内胆上下滑动；所述搅拌器具有圆环形的外壳，搅拌器通过所述外壳套设在所述内胆内；所述外壳上设置有密封板，密封板上开设有多个朝向下方的导流通道，每个所述导流通道的两侧还设置有相对应的两个超声波换能器。本发明实施例的超声波杀菌发酵罐，通过开启搅拌器，并利用搅拌器上的密封板对菌液进行过滤和超声波杀菌，不仅简化了操作，也能够有效的避免杀菌过程中对菌液中营养物质的破坏。 【EN】The invention provides an ultrasonic sterilization fermentation tank, belonging to the field of biological fermentation; the invention comprises the following steps: the tank body, the inner container and the stirrer; the inner container is arranged in the tank body and is of a circular tubular structure with openings at two ends; the top end of the inner container is provided with a liquid inlet, and the bottom end of the inner container is provided with a liquid outlet; the stirrer is slidably sleeved in the inner container and can slide up and down along the inner container; the stirrer is provided with a circular shell, and the stirrer is sleeved in the inner container through the shell; the shell is provided with a sealing plate, the sealing plate is provided with a plurality of flow guide channels facing downwards, and two sides of each flow guide channel are provided with two corresponding ultrasonic transducers. According to the ultrasonic sterilization fermentation tank disclosed by the embodiment of the invention, the stirrer is started, and the sealing plate on the stirrer is used for filtering and ultrasonically sterilizing the bacterial liquid, so that the operation is simplified, and the damage to nutrient substances in the bacterial liquid in the sterilization process can be effectively avoided.