The tube-type yogurt-making machine is mainly used to make high-yield yogurt. Thanks to a high-temperature sterilizer, yogurt sterilization can be completed in a few seconds, which greatly improves working efficiency, but it can still retain its nutrition of milk. The most significant feature of this yogurt production line is that the sterilization is continuous in a completely closed system. Besides, such a sterilization system has little effect on the flavor and nutritional content of the final yogurt, preventing the secondary pollution of milk.