The utility model relates to an integrated distributed sewage treatment device which comprises a box body provided with a plurality of partition plates, and an anaerobic zone, a gas stripping zone, anaeration zone, a settling zone and a disinfection zone are sequentially connected with one another in the box body; the device further comprises an equipment room, the equipment room is located on the leftmost side of the whole device, the equipment room is completely isolated from other areas of the device through a first partition plate, and a draught fan is arranged in the equipment room and connected with a main pipe of the gas stripping pipe. According to the device, air is used as driving force, a special hydraulic structure is combined, an efficient and energy-saving air plug flow system is formed, an efficient large-proportion internal circulation technology is adopted, inflow water is diluted, a stable growth environment is created for microorganisms, and the concentration gradient of pollutants in the device is reduced. The device is good in SS and COD removal effect, small in occupied area, low in investment cost, low in operation cost and excellent in effluent quality, andis universally suitable for the treatment process of urban and rural domestic sewage and small and medium-sized industrial wastewater.