Abstract: Harmless treatment and resource utilization of crop straw and livestock manure is crucial to improving living environment in rural areas, and biogas project is an important way to realize resource utilization of crop straw and livestock and poultry manure．At the same time, as a clean and green biomass energy source, biogas could alleviate shortage of fossil energy in China．The large-scale biogas project of Lanke Mountain Agricultural Planting Professional Cooperative was research object．Through literature review and field research, development status and shortcomings of Lanke Mountain straw biogas project were systematically studied from aspects of scale of biogas project, source of raw material, type and quantity of raw material, equipment, biogas production, biogas fertilizer production and driving related industries．Based on this, common problems existing in biogas engineering at present were further clarified, mainly including unstable biogas production, little economic benefit relying on biogas, lack of complete industrial chain and innovative operation and management mode．In view of above common problems, segmented biogas project operation mode was innovatively put forward．Front-end company was responsible for production and operation management of biogas engineering related products, and back-end company was responsible for sales of biogas engineering related products．The purpose was to provide a theoretical basis for healthy and sustainable development of biogas industry and decision-making of relevant departments．