TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Components: The fermentation material system comprises a premixing tank, an agitating pump, and a fermentation tank, which are connected in turn. The agitating and feeding control system comprises a pressure sensor, an agitating motor, and a feeding pump; where the pressure sensor is installed on the bottom of the premixing tank; the agitating motor is mounted within the premixing tank; the feeding pump is connected with the premixing tank; and the pressure sensor can be replaced by an ultrasonic sensor mounted on the top of the premixing tank. The temperature-increasing/limiting system comprises a gas agitating electromagnetic valve, a hydraulic agitating pump, and a temperature-increasing medium circulating pump; the hydraulic agitating pump is mounted within the fermentation tank; the temperature-increasing medium circulating pump is connected with the fermentation tank via a pipeline together; and the gas agitating electromagnetic valve is mounted on the hydraulic agitating pump. The temperature-increasing/limiting control system comprises energy storage medium temperature sensors and a pressure sensor; where three energy storage medium temperature sensors are set and mounted on the upper part, the middle part, and the lower part of the fermentation tank; and the pressure sensor is mounted on the upper position within the fermentation tank. The methane processing system comprises a buffer tank, a booster pump, an air tank, and a travel switch; where the buffer tank is connected to the fermentation tank via a pipeline; the air tank and the buffer tank are connected via a pipeline; and the pipeline between the air tank and the buffer tank is set with the booster pump and the travel switch. The methane processing control system comprises a pressure control electromagnetic valve, a pressure sensor, a meter, and an acousto-optic signal warner; where the pressure control electromagnetic valve is mounted on the travel switch; the air tank is set with the pressure sensor; and the pipeline for connecting the air tank with the buffer tank is set with the meter and the acousto-optic signal warner. The central processing system comprises a computer, a video card, and a Siemen central processing unit (CPU); where the video card and the Siemen CPU are mounted within the computer. The display system comprises monitors and a displayer; where four monitors are set and mounted on the premixing tank, the fermentation tank, the buffer tank, and the air tank; all monitors are connected to the video card within the computer via circuits; and the external of the computer is connected to the displayer.