Air　pollution　has　intensified　in　recent　years.　The　rates　of　sulfur　dioxide　(SO2)　and　nitrogen　oxides　(NOx)　contributing　to　air　pollution　have　risen　annually,　imposing　huge　burdens　on　human　health　and　industrial　production.　Among　gas　separation　techniques,　wet　scrubbing　exhibits　superior　economical　and　application　value　to　simultaneously　remove　SO2　and　NOX.　This　paper　summarizes　the　mechanism,　study　approaches,　and　application　status　of　wet　scrubbing　to　remove　SO2　and　NOX.　Given　the　results　of　previous　experiments,　the　factors　are　split　into　three　categories:　operating　parameters,　equipment　parameters,　and　additional　conditions.　With　the　mechanism　and　degrees　of　each　factor　considered,　a　wet　scrubbing　optimization　scheme　for　enhancing　the　absorption　efficiency　is　presented.　In　order　to　improve　the　removal　efficiency　while　maintaining　sustainability,　this　study　also　introduces　the　method　of　waste　heat　recovery　and　water　recycling　in　the　wet　scrubbing　system.　In　view　of　the　current　conditions,　the　development　trend　of　wet　scrubbing　should　be　optimized　as　well　as　combined　with　other　new　technologies.