NOVELTY - Sewage is supplied to a continuous draining activity mud biochemical pool having 4 lattices (7-10). In lattice (7), water is filled, stirred, aerated, deposited and drained. In lattices (8,9), aeration is carried out. In lattice (10), deposition, draining, water-filling, stirring, and aeration are carried out. The system is completed by a sewage center controller. Microorganisms carry out absorption, de-oxidation and other courses in the biochemical pool. Ammoniacal nitrogen in sewage is nitrified and denitrified, and phosphorus is removed.    USE - Management of continuous sewage draining activity.    ADVANTAGE - The method is efficient, odorless, economical, convenient and simple.    DETAILED DESCRIPTION - Sewage is supplied to a collecting well (1) from a sewage pipe (5) after being collected from a pipe network. A flooding pipe (6) is equipped near the collecting well. Sewage stays in a grizzly screen pool (2) which intercepts large rubbish in sewage, before entering an uplift system. The grizzly screen is of buried type which enters a digesting adjustment pool (3) of the uplift system. A sand separating pool is provided in the digesting adjustment pool (3) which is of buried type and has the effect of initial separating pool, the effect of adjusting water quality function, and acidic hydrolyzing function. Giant molecules of organic matter and matter which is difficult to be decomposed are decomposed, improving the biochemical ability of sewage. Finally, sewage is supplied to a continuous draining activity mud biochemical pool having 4 lattices (7-10). In lattice (7), water is filled, stirred, aerated, deposited and drained. In lattices (8,9), aeration is carried out. In lattice (10), deposition, draining, water filling, stirring, and aeration are carried out. The system is completed by a sewage center controller. Microorganisms carry out absorption, de-oxidation and other courses in the biochemical pool. Ammoniacal nitrogen in sewage is nitrified and denitrified, and phosphorus is removed. Processed sewage reaches disposal standards or recycle management is carried out.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the management method of continuous sewage draining activity.    Collecting well (1)    Grizzly screen pool (2)    Digesting adjustment pool (3)    Sewage pipe (5)    Flooding pipe (6)    Lattices (7-10)