NOVELTY - Biological treatment of domestic waste comprises sorting large impurities, combustible materials and ferromagnetic metals form waste, producing biogas from the sorted organic waste by biological dry anaerobic fermentation, circulating leachate, inoculating anaerobic bacteria by spraying, humidifying, purifying biogas, compressing to be used as a vehicle fuel and household energy, screening large impurities and light combustible materials, and biological aerobic drying.    USE - The method is useful for biological treatment of domestic waste (claimed). The screened combustible material is useful as a winter fermentation tank heating fuel. The biogas slag is useful as a compounding fertilizer raw material and an organic fertilizer.    ADVANTAGE - The method has high productivity of biogas, hydrogen sulfide content in the biogas is low and does not cause secondary pollution; and is simple, economical, land occupation is less, processing capacity is large, and is easy to implement and promote.    DETAILED DESCRIPTION - Biological treatment of domestic waste comprises (i) crude sorting of domestic waste in household waste after breaking cylinder sieve through primary selection, introducing into the large grain crushing sieve, subjecting to magnetic separation, specific gravity wind screening the large selected inorganic hybrids, combustible materials (plastic, wood, cotton), inorganic material (sand, stone, glass), ferromagnetic metals, screening organic waste as raw materials for dry fermentation to obtain a biogas, where inorganic substances does not influence the dry fermentation process, it is not necessary for fine sorting which allows to meet the requirement, (ii) biological dry anaerobic fermentation batches for rough organic waste comprises uniformly mixing 25-30% anaerobic fermentation batches of waste and 25-30 % of the batch marsh secondary slag, recycling, inoculating with anaerobic bacteria using Forklift loading dry-fermentation tank, spraying with leachate of anaerobic bacteria, sealing ferment producing methane gas for a processing cycle of 25-30 days, using pool design mode of multi-pool for circulation, maintaining the waste processing and biogas production one treatment period, and designing fermentation pool, (iii) spraying leachate on the waste in the pool by opening leachate storage tank and dry ferment pool with the upper part of spray pipe, where spray comprises leachate of anaerobic bacteria humidifying the raw material of anaerobic bacteria with water to 45-55%, generating new leachate by drying the bottom of the fermentation tank, returning via pipeline to the fermentetion tank, and inocultated with bacteria for recycling, (iv) loading the waste in the dry fermentation tank for 48-72 hours for producing acidified gas, where marsh gas collecting pipe through the shunting pipe is sent to the ultraviolet deodorization device for discharge purification to ensure the purity of greater than or equal to 65% methane and less than or equal to 12 ppm, (v) storing the methane in gas cabinets, which is obtained from the waste dry fermentation through pressure swing adsorption purifying compressor, where the calorific value is /~ 31.4 MJ, carbon dioxide content is less than or equal to 3%, oxygen content is less than or equal to 0.5%, using as vehicle fuel and for domestic purpose by canning, (vi) biological aerobic drying of fermentation biogas comprises drying the biogas containing 55-65% of water, drying the pool with full covered aerobic biological method for preparing humic fertile, (vii) carrying out pre-fermentation, crude sorting, selecting the magnetic metals and inorganic substances wood materials, plastics, inorganic sand, after drying the biogas moisture of 30-35%, screening, sorting all kinds of impurities, and improving biogas purity, where the method utilizes biological dry anaerobic fermentation, which does not require meticulous sorting, utilizing the sorted waste throughout the whole process, using dry method of continuous anaerobic treatment for waste, treating waste containing plastic, fiber and inorganic impurities, simplifying the problem of non anaerobic fermentation process, utilizing full available resources of waste.