The invention discloses a fruit wine fermentation device. The device is characterized by being composed of a tank body, an air pipeline and a steam pipeline. The upper end of the tank body is equipped with the air pipeline, the steam pipeline and an injection port, the tank body is internally provided with a stirrer, the stirrer consists of a stirring shaft, and a spiral piece and a driving device that are arranged on the stirring shaft. The fermentation device provided by the invention utilizes temperature, humidity and biological sensors to determine the temperature, humidity, enzyme content, microbial content and the content of other nutrients in the fermentation device, uses a controller to adjust the fermentation temperature and humidity, and is equipped with the stirrer to adjust the fermentation progress and discharge the fruit wine timely.