Based　on　the　global　entropy　method　to　evaluate　the　technological　innovation　ability　and　the　development　level　of　green　economy　in　Chinese　provinces　from　2006　to　2015,　this　paper　uses　partial　least　squares　(PLS)　method　to　measure　the　influence　of　various　components　of　technological　innovation　ability　on　the　development　level　of　green　economy　in　China.　The　empirical　results　show　that　at　the　provincial　level　in　China,　technological　innovation　capability　has　a　significant　positive　impact　on　the　development　level　of　green　economy.　Among　them,　the　technology　input　ability　has　the　strongest　influence　on　the　development　of　green　economy,　followed　by　the　technology　output　and　support　ability,　while　the　technology　diffusion　ability　has　not　formed　a　significant　positive　influence　on　the　development　level　of　green　economy.　The　research　further　finds　that　the　improvement　of　technology　input　ability　can　effectively　promote　the　improvement　of　technology　output,　technology　support,　and　technology　diffusion　ability.　For　the　sake　of　improving　the　provincial　development　level　of　green　economy　of　China,　it　is　necessary　for　China’s　provinces　to　enhance　their　technology　input　ability　and　improve　their　technological　innovation　resources　allocation　efficiency.　©　2022,　The　Author(s),　under　exclusive　licence　to　Springer　Nature　Switzerland　AG.