Improving　urban　land　use　efficiency　is　a　feasible　way　to　realize　sustainable　development　and　alleviate　urban　land　pressure　on　the　city.　The　main　purpose　of　this　article　is　to　measure　the　urban　land　use　efficiency　of　the　Yangtze　River　Economic　Belt,　and　explore　its　evolutionary　trends　and　influencing　factors,　so　as　to　provide　references　for　policy　formulation　to　promote　efficient　land　use　and　sustainable　development.　Therefore,　we　calculated　the　value　of　urban　land　use　efficiency　in　the　Yangtze　River　economic　belt　from　2004　to　2019,　based　on　the　super　efficiency　SBM　model,　including　unexpected　output.　Further,　we　analyzed　the　spatial-temporal　evolution,　and　spatial　correlation　and　its　influencing　factors.　The　main　results　are　as　follows:　Firstly,　urban　land　use　efficiency　in　the　Yangtze　River　economic　belt　continues　to　improve　as　a　whole,　but　it　is　higher　in　the　east　and　lower　in　the　west.　In　the　kernel　density　evolution　map,　the　development　trend　is　steep　at　first　and　then　slows,　and　the　gap　tends　to　decrease.　Secondly,　the　spatial　correlation　of　urban　land　use　efficiency　in　the　Yangtze　River　economic　belt　increases　year　by　year,　showing　a　positive　correlation　overall.　The　high-high　agglomeration　shifts　to　the　east,　low-low　agglomeration　shifts　to　the　west,　and　low-high　and　high-low　agglomeration　show　scattered　distribution.　The　hot　and　cold　spots　are　distributed　regionally　and　have　a　diffusion　trend.　Thirdly,　the　results　of　the　spatial　Dubbin　model　show　that　the　urbanization　level,　government　expenditure　and　industrial　instruction　transformation　can　promote　the　improvement　of　urban　land　use　efficiency,　and　people　density　and　land　use　scale　can　inhibit　its　improvement.　Additionally,　there　is　remarkable　heterogeneity　in　the　effect　of　these　influencing　factors.　On　the　whole,　the　effect　of　non-resource-based　cities　is　better,　and　it　is　more　so　in　the　cities　of　the　eastern　region.