Developing　new　productivity　adapted　to　local　conditions　and　actively　promoting　the　green　transformation　of　industries　is　the　key　to　improving　environmental　pollution　control　levels.　Based　on　data　from　697　listed　companies　in　heavily　polluting　industries　nationwide　from　2012　to　2022,　this　paper　empirically　examines　the　impact　mechanisms,　paths,　and　heterogeneity　of　technological　finance,　technological　innovation,　and　financing　constraints　on　environmental　pollution　control　levels.　The　study　shows　that　technological　finance　significantly　improves　the　environmental　pollution　control　levels　of　heavily　polluting　enterprises.　However,　there　is　some　greenwashing　behavior　in　the　utilization　of　technological　finance　funds.　Technological　innovation　and　financing　constraints　play　a　partial　mediating　role　in　the　process　of　improving　environmental　pollution　control　levels　through　technological　finance.　Compared　with　non-state-owned　enterprises,　state-owned　enterprises　are　more　sensitive　to　the　enhancement　of　environmental　pollution　control　through　technological　finance.　To　improve　the　environmental　pollution　control　levels　of　heavily　polluting　enterprises,　those　located　in　strictly　regulated　＂dual　control　areas＂　are　less　influenced　by　technological　finance　compared　to　those　outside　these　areas.　This　paper　also　attempts　to　explore　the　factors　affecting　the　sustainable　green　development　of　heavily　polluting　industries　and　provides　policy　recommendations　for　improving　the　environmental　pollution　control　levels　of　heavily　polluting　enterprises.