Aiming　at　the　problems　of　excessive　energy　consumption　(EC)　and　exceeded　seriously　effluent　quality　(EQ)　in　wastewater　treatment　control　process,　an　optimal　control　of　wastewater　treatment　process　using　a　multi-objective　uniform　distribution　NSGAII　algorithm　(UDNSGAII)　was　proposed.　Firstly,　EC　and　EQ　of　wastewater　treatment　are　regarded　as　optimization　objectives,　and　the　multi-objective　optimal　control　model　is　established.　Secondly,　to　obtain　the　optimal　set　values　of　dissolved　oxygen　(DO)　and　nitrate　nitrogen　(NO),　and　improve　the　performance　of　Pareto　solution,　the　individuals　which　have　been　clustered　are　mapped　to　the　hyperplane　of　the　corresponding　objective　function,　then,　the　diversity　of　population　is　increased.　In　addition,　the　distribution　judgment　module　and　distributed　enhancement　module　are　used　to　improve　the　distribution　of　solutions.　Finally,　PID　controller　as　the　bottom　controller　is　used　to　track　the　optimal　setting　value　of　DO　and　NO.　To　test　the　effectiveness　of　the　proposed　algorithm,　benchmark　simulation　model　No.1　(BSM1)　is　used.　The　results　show　that　the　proposed　UDNSGAII　multi-objective　optimization　control　method　can　effectively　reduce　EC　of　wastewater　treatment　process　while　meeting　EQ　standards.　©　All　Right　Reserved.