The invention relates to a difference adaptive universal gravitation searching algorithm and a sewage processing control method based on the same. The searching algorithm comprises following steps of S1, initializing groups; S2, calculating fitness values of the groups; S3, calculating inertia mass M and accelerated speed alpha of each group; S4, updating an individual position; and S5, comparing to determine whether iteration times is reached, if yes, outputting an optimal value, and if not, repeating the steps S2, S3, and S4. The beneficial effects are that convergence speed is associated with step lengths during acceleration of the convergence speed, so the best way is that by updating the individual parameter G0 and the accelerated speed alpha in real time, the convergence speed of the algorithm can be effectively controlled and algorithm precision is improved.