Drawing　on　data　from　Chinese　A-share　listed　firms,　this　study　demonstrates　that　government　regulations　significantly　reduce　corporate　greenwashing,　with　green　innovation　as　a　key　mechanism　driving　this　effect.　While　regulations　initially　suppress　overall　corporate　patent　output,　they　also　prompt　a　strategic　shift　in　firms＇　innovation　strategies,　transitioning　from　traditional　to　green　innovation.　These　findings　offer　new　insights　into　the　role　of　local　governments　in　combating　corporate　greenwashing　and　highlight　the　transformative　potential　of　regulatory　interventions　in　fostering　sustainable　innovation.