NOVELTY - Biogas complex comprises: system to protect substrate, memory device of substrate, fertilizer feed system and system to protect biogas; where container, hydrolytic reactor and methane-tank are gas-tight; on memory device is line to protect substrate, has feed systems for fractions of reducer of soils, and system to protect container liquid; system to protect biogas has internal plot with check valve closing and external plot to gas holder; and container, hydrolytic reactor and methane-tank have automatic substrate dosing system with periodicity of uniform load from hydrolytic reactor.    USE - As universal biogas complex for producing electrical energy and organic fertilizer (claimed).    DETAILED DESCRIPTION - A universal biogas complex comprising loading zone of organic waste, and biogas installation that produces electrical energy and organic fertilizer, comprises: preparatory container communicated with feed system of organic waste and water, reactors, system for protecting substrate, memory device of substrate, feed system of organic fertilizer, system for protection of biogas, and gas holder; where reactors including preparatory container, hydrolytic reactors and methane-tank are made gas-tight; on memory device of substrate is separator, and has further installed line for protection of substrate from storage device and is supplied with feed system for solid fraction in form of reducer of soils, feed system for liquid fraction in form of reducer of soils, and system for protection of liquid fraction into preparatory container, which are placed inside united spatial volumetric construction, are made dismountable from separate modules, are installed on foundation in immediate proximity from system for organic waste, receiving device is arranged outside construction, and feed systems of solid and liquid fractions in form of reducer of soils are connected with packaging site located in immediate proximity from construction; system for protection of biogas interacts with control unit, contains internal plot with check valve closing, arranged inside construction, and external plot located outside construction and connected with gas holder; and autonomic device is installed on foundation relative to construction, preparatory container, hydrolytic reactor, and methane-tank have system of heating, and each has system of hydraulic mixing and automatic dosing of unloading substrate of methane-tank with periodicity of uniform load of substrate from hydrolytic reactor, and are communicated with system of automatic transferring of liquid weight of organic waste from preparatory container; where interaction of all systems is performed with control unit for maintenance of temperature, effectiveness of mixing, and periodicity of transferring of liquid weight of organic waste and substrates in them respectively. The organic waste is bird dung (preferably poultry dung) without organic or inorganic additives or additional technological implements.