Exposure　to　green　environments　is　crucial　for　human　health.　However,　urbanization　has　reduced　the　contact　of　urban　residents　with　natural　environments,　causing　a　mismatch　between　the　supply　and　demand　for　green　exposure.　Research　in　this　field　is　hindered　by　the　lack　of　long-term,　reliable　data　sources　and　methodologies,　leading　to　insufficient　consideration　of　temporal　variations　in　green　exposure.　This　study　presented　a　comprehensive　methodology　for　assessing　green　exposure　at　a　fine　scale　utilizing　satellite　images　for　urban　tree　canopy　identification.　We　conducted　a　case　study　in　the　core　area　of　Beijing　from　2010　to　2020　and　examined　the　effects　of　urban　renewal　and　alleviation　efforts.　The　results　revealed　a　slight　decrease　in　green　exposure　for　the　elderly　over　the　decade,　with　minimal　changes　in　equity.　In　contrast,　green　exposure　for　children　has　increased,　with　increasing　inequality.　Moreover,　urban　renewal　has　improved　green　exposure　for　nearly　half　of　the　low-supply　blocks.　However,　a　significant　mismatch　was　observed　between　supply　and　demand　for　blocks　with　increased　demand　but　limited　supply.　This　study　enhances　the　assessment　of　green　exposure　and　provides　guidance　for　planning　and　constructing　a　“Green　Equal　City”.　©　2024