Odor pollutants can be controlled in the early, middle and late raising-stage in a scaled pig farm. Tests and experiments showed that feed additives contained deodorant microorganisms and other chemical ingredients could reduce ammonia and sulfuretted hydrogen efflux 38.6% and 20.6% in pigsty, and 14.7% and 20.4% in wastewater adjusting tank respectively, meanwhile odor concentration was remarkable reduced 43.8%. When solid odor absorbers were positioned in rows in pigsty, the ammonia and sulfuretted hydrogen concentrations were reduced 29.5% and 30.4% in pigsty, and 30.2% and 0% in wastewater adjusting tank, odor concentration also remarkable reduced 31.9%. At the piggery wastewater treatment station, the deodorant fine spray was effluented from the odor biological equipment, the concentrations of ammonia was reduced 14.7%, 24.6% and 48.2%, and sulfuretted hydrogen was reduced 18.1%,25.8% and 13.0% in wastewater adjusting tank, excrement tank and screen tank respectively, odor concentration was reduced 82.6% obviously by the equipment.