Abstract: Objective To analyze and evaluate the occupational disease hazard control effects of a certain energy technology Co.,Ltd. in Xuzhou City on biomass and fecal waste production of biogas,biogas power generation,and biogas organic compost production. Methods In 2022,data were collected from a certain enterprise in Xuzhou City using methods such as occupational health on-site investigation methods,occupational disease hazard factor detection methods,and a combination of occupational disease protection facilities,emergency rescue facilities,personal protective equipment,and occupational health monitoring methods to comprehensively analyze and evaluate the project of fecal pollution,biomass to biogas production,biogas power generation,and biogas residue to compost. Results The main types of occupational disease hazards in this project include chemical hazards（other dust,ammonia,hydrogen sulfide,methyl mercaptan,ethyl mercaptan,sodium hydroxide,urea,nitrogen oxides,sulfur dioxide）,noise,high temperature,and power frequency electric field. The detection results of occupational hazard factors showed that the qualified rate of the tested factors was 100.0%.The occupational health examination results showed no contraindications or suspected occupational diseases,and the intact rate of personal protective equipment was 100.0%. Conclusion This project belongs to the industries of biomass energy generation（industry code D4417）,biomass gas production and supply（industry code D4520）,and natural gas production and supply（industry code D4511）,and is a construction project with serious occupational disease hazards.

Key words: Biomass, Fecal pollution, Biogas, Composting, Power generation, Occupational hazard factors, Control effect evaluation.