NOVELTY - A distributed biological fermentation energy supply system, comprises a biological fermentation device, a solar energy collecting device, a power generation device, a wind power generation device, a first heat exchange device and a second heat exchange device.    USE - Distributed biological fermentation energy supply system (claimed).    ADVANTAGE - According to the system, biogas fermentation-gas turbine power generation serves as a link, and the solar heat supply, wind stirring and power generation are taken as auxiliary unit, so that a multi-energy complementary distributed energy system is integrated; and therefore, the problem of the single energy utilization limit is broken through, energy utilization coupling is realized, and the utilization efficiency of the energy system is improved.    DETAILED DESCRIPTION - A distributed biological fermentation energy supply system, comprises: biological fermentation device comprising a bio-fermentation tank and its associated pre-fermentation tank; where the fermentation tank is provided with stirring unit for stirring the biomass material in the pool; a solar energy collecting device for the collection of solar energy, which through a first heat exchanger device and pretreatment fermentation tank is connected to the pre-fermentation tank to provide heat; a power generation device connected with the fermentation apparatus for combustion of methane gas power, the power generating unit further connected to the mixing unit, to provide energy for the stirring device, where the power generating device comprises a gas turbine connected to sequentially, generator and transformer transmission devices. An INDEPENDENT CLAIM is included for a method for performing distributed biological fermentation energy supply by employing the system, which involves: (a) the biomass material in the biological fermentation preprocessing pool, pre-processing the biomass, the pre-processing uses heat treatment technology, the cell wall crushing at the temperature of 125-175 degrees C, and the biomass macromolecule into to ferment the small molecule, using the gas waste heat and the solar energy collecting device for collecting the pre-processing heat as heat source for heating the biomass preprocessing by the pre-processing and the biomass material is solid-liquid separation, the liquid enters the biological ferment tank, the solid can be directly used as fertilizer or a dry fertilizer used; (b) the solution after pre-processing biomass material into the biological ferment tank, the preprocessing of a waste heat control anaerobic fermentation temperature is 50-55 degrees C, the wind power generation device can provide air kinetic energy as the mechanical stirring device to stir the liquid phase biological material make the liquid in the fermenting tank connected with biomass material with the biological anaerobic bacteria to increase heat transferring and mass transferring of the biological ferment tank; (c) marsh gas through pipeline enter into fermentation gas engine with the generator wheel, a combustion power generation, gas turbine tail gas pipe into the second heat exchange device is connected with the biological fermentation device of a circulating heat exchange medium for heat exchange, the heat exchange medium temperature after exchanging and returning the biological fermentation device, to the waste heat recovery.