The invention discloses a multi-point water inlet 
aeration anoxic-aerobic high-efficient 
nitrogen and 
phosphorus removal method. The method sequentially comprises the following steps of: (1) introducing 
sewage to be treated into a grille regulating tank through a water inlet 
pipe; (2) dividing the water after pretreatment by the grille regulating tank into two lines, wherein one line leads to an 
aeration tank and the other line leads to an anoxic tank; (3) sending the water in the anoxic tank into an aerobic tank; (4) dividing nitrified water after 
nitrification treatment in the aerobic tank into two lines, wherein one line returns to the anoxic tank, and the other line flows into a 
precipitation tank to perform mud-water separation; and (5) lifting 
sludge through a 
sludge lifting device, transporting the residual 
sludge to the outside through a sludge 
discharge pipe after passing through a sludge 
treatment system, and returning the sludge after lifting into the 
aeration tank. The method disclosed by the invention is suitable for new and transformation upgrading projects of high-
ammonia nitrogen village and 
small town / industrial 
sewage treatment works, has the advantages of simplicity and convenience in management and maintenance, low cost, good treatment effects, strong 
nitrogen removal effect and the like, and is less affected by climatic conditions.