Lipase is an important of extracellular thermostable enzyme that has received considerable attention for potential use in the food industry. Hence to achieve large scale production of gram positive and negative organism is commercially important lipase enzyme under the fermentation. Lipases are produced by microorganisms such as bacteria and fungi. However, we have focused on bacterial microbial lipases were economically importance of several properties. The present studies of the goals of this paper were isolation and identification of lipase producing bacteria from biogas producing power plant waste volatile substances as sources. Optimization of the experimental conditions for the maximal amount of enzyme production was performed.