This　paper,　residual　high-frequency　boost　method　is　imported　into　the　iteration　process　of　the　simulation-correction　iteration　image　reconstruction　algorithm,　and　produces　more　high-frequency　details　information　for　the　algorithm,　which　improves　the　algorithm＇s　performance.　We　use　Matlab　to　implement　the　algorithm　and　the　results　indicate　that　importing　the　residual　high-frequency　boost　into　the　image　reconstruct　algorithm　can　highly　improve　the　performance.