A multi-sensor based automatic brewing mass overturn machine comprising a moving module, a vinegar brewing mass information monitoring module, a system control module and a brewing mass overturn execution module is provided. The moving module comprises a moving motor, and the vinegar brewing mass information monitoring module comprises a vinegar brewing mass temperature and acidity information monitoring unit, a vinegar brewing mass smell information monitoring unit, and an overturned brewing mass appearance information monitoring unit. The system control module comprises a computer and a programmable controller, the computer being connected with a temperature sensor, an acidity sensor, a gas sensor array, a color camera and the programmable controller, respectively. The brewing mass overturn execution module comprises an overturn motor and brewing mass overturn motors.