The invention provides a microbial fermentation tank for production. The microbial fermentation tank for production comprises a tank body, a sealed tank cover, support legs and a controller, a stirring motor is arranged at the middle position of the sealed tank cover, the output shaft of the stirring motor is fixedly connected with a stirring shaft through a shaft coupling, one side of the stirring shaft extends into the tank body, the stirring shaft is fixedly provided with stirring paddles, a water bath constant-temperature room is arranged outside the tank body, one side of the upper end ofthe water bath constant-temperature room is connected with a water conveying tube, is sequentially connected with a water pump, a heater, a circulating water tank and a refrigerator through the waterconveying tube, and is connected to the other side of the upper end of the water bath constant-temperature room through the water conveying tube, one side of the lower end of the tank body is connected with an oxygen generator through a gas conveying tube, and a temperature sensor, a pressure sensor, a dissolved oxygen electrode and a pH electrode are arranged in the tank body. The microbial fermentation tank can effectively control the temperature, the pressure, the pH value and the dissolved oxygen content in the fermentation tank while stirring uniformly, and has a high practicability.