This　study　aimed　to　effectively　evaluate　the　ecological　restoration　of　the　river　reach　where　a　small　hydropower　station　was　retired　or　renovated.　An　ecological　health　index　system　was　constructed　based　on　the　environmental　characteristics　of　the　upstream　and　downstream　of　the　small　hydropower　station　after　its　retirement　and　renovation.　Based　on　the　combination　weighting　concept　of　game　theory,　the　combination　weights　were　obtained　by　the　comprehensive　analytic　hierarchy　process　(subjective　weight)　and　entropy　method　(objective　weight).　This　ecological　health　assessment　with　fuzzy　comprehensive　evaluation　was　applied　to　assess　the　health　status　of　Shimen　(dam　removal)　and　Changqiao　(renovation　in　ecological　flow)　reaches　of　the　Tufang　River　in　Changting　County,　China.　The　results　showed　that　the　ecological　health　assessment　index　system　proposed　in　this　study　was　comprehensive　and　reasonable,　and　the　revision　degree　of　the　hydropower　station　obviously　influenced　the　process　of　ecological　river　restoration.　The　findings　from　this　study　would　benefit　for　the　rational　utilization　of　water　resources　and　the　river　ecological　health　maintenance　in　mountainous　areas.　©　2023　by　the　authors.