The present design uses, more particularly sewage-water bond that is discharged from the town of upstream tube it relates to accommodate aquatic union structure that is installed in the water supply magazine upstream of the town in relation to feeding sewage to the sewage treatment plant it is possible to process the sewage as quickly as possible to prevent water source fingers water pollution, and not to water union at all the composite member and the relationship between water pollution by used to manufacture a high density polyethylene material if water source has a no problem of corrosion structure It relates to a water pipe joint structure for sewage treatment. The present design, in a facility that processes sewage upstream of the village of the area adjacent water supply pond, water source if the building of the upstream village in the sewer connection that by collecting the wastewater in the sewage treatment plant to process the sludge and intermediate waste Meanwhile, the the wastewater treatment facility in connection with underwater joint pipe provided in the water by connecting the other sewage was fed into a comprehensive sump is installed adjacent to the sewage in water sources dam, synthesis water collection of the the sewage treatment plant, the synthesis was connected to the water collecting process pipe using the formation of a pump installed in the sump after the transmission narrow and treated sewage in a sewage treatment plant and provides a water union structures for water supply if sewage treatment, characterized in that the structure to discharge to nongsuro and hasuro to another connector.