The　development　of　the　digital　economy　provides　crucial　support　and　impetus　for　enhancing　green　innovation　efficiency.　This　connection　between　the　digital　economy　and　green　innovation　manifests　in　many　dimensions.　While　within　the　research　on　the　pathways　through　which　the　digital　economy　influences　green　innovation,　the　sequential　order　of　these　transmission　pathways　is　of　paramount　importance.　This　bears　significant　implications　for　optimizing　resource　allocation,　enhancing　the　efficiency　of　green　innovation,　and　providing　guidance　for　government　policy　formulation.　This　study　utilizes　data　from　30　provinces　in　China　from　2012　to　2021　and　employs　the　SBM-DDF　model　considering　undesired　output　to　estimate　green　innovation　efficiency.　Furthermore,　a　multiple　mediation　model　is　constructed　from　three　levels:　macro-environment,　industrial　structure,　and　micro-enterprises,　in　order　to　investigate　the　transmission　mechanism　of　the　impact　of　the　digital　economy　on　green　innovation　efficiency.　The　research　findings　indicate　that　the　rapid　development　of　the　digital　economy　significantly　improves　the　regional　green　innovation　efficiency,　and　this　conclusion　remains　valid　after　conducting　robustness　tests.　Additionally,　there　is　a　lagging　effect　in　the　enhancement　of　green　innovation　efficiency　from　the　digital　economy.　The　digital　business　environment,　coordination　of　industrial　structure,　and　level　of　enterprise　digital　transformation　play　significant　mediating　and　moderating　roles　in　the　relationship　between　the　digital　economy　and　regional　green　innovation　efficiency.　In　the　chain　mediation　effect　model,　the　impact　of　the　digital　economy　on　green　innovation　efficiency　follows　a　＂bottom-up＂　transmission　process,　while　the　3-Layer　chain　mediation　effect　of　the　digital　economy　on　green　innovation　efficiency　is　almost　negligible.