The　carbon　trading　system　has　been　identified　as　an　effective　policy　for　reducing　carbon　emissions　and　a　crucial　environmental　tool　for　achieving　the　carbon　neutrality　target.　This　study　employed　a　two-way　fixed-effects　model　to　investigate　the　possible　impacts　of　China＇s　carbon　trading　policy　on　green　technological　innovation　in　the　carbon　trading　pilot　cities.　Our　results　indicate　that　the　carbon　trading　policy　considerably　promotes　the　green　technological　innovations　of　enterprises.　One　million　CNY　increases　in　carbon　trading　turnover　will　increase　the　number　of　granted　green　invention　patents　by　119.4　when　the　city　and　year　fixed-effects　are　controlled.　We　conducted　a　series　of　tests,　such　as　changing　the　dependent　variable,　shortening　the　sample　period,　and　testing　the　non-linear　relationship,　to　support　the　robustness　of　the　main　findings.　Moreover,　our　heterogeneous　tests　demonstrate　that　the　effects　of　the　carbon　trading　policy　on　green　technological　innovation　vary　across　cities　with　different　dimensions:　municipalities　that　are　directly　under　the　central　government,　cities　with　high　GDP,　cities　in　the　eastern　region,　and　cities　with　high　market　vitality　have　seen　higher　green　technological　innovation　effects.　Finally,　we　recommend　strategies　for　increasing　the　vitality　of　the　carbon　market,　i.　e.,　facilitating　the　linkage　between　carbon　trading　pilots　and　the　national　carbon　market.