Decentralized wastewater treatment technology has a small footprint device, without a network of pipelines, equipment and high integration, sewage treatment equipment manufacturers, and therefore the cost of infrastructure and civil engineering costs account for a relatively small investment in the overall, only about 30% of life sewage treatment equipment qualification, while about 70% of the investment is mainly used for sewage treatment equipment procurement and installation. The role of sewage treatment station is on the production, domestic sewage treatment, sewage treatment facilities in Inner Mongolia, the required emission standards, is an important facility to protect the environment. Sewage treatment station in industrialized countries has been very popular, and our little village sewage treatment plant, but the future will be growing gradually. For these sewage treatment station really play a role, we need to rely on stringent emission system, organization and management system to ensure that.