Given　the　tracking　failure　problem　of　SRDCF　algorithm　in　target　occlusion　and　severe　deformation,　this　paper　put　forward　the　optimized　SRDCF　tracking　method　through　adopting　the　DDIS　correction　module.　Firstly,　we　use　step　by　step　search　strategy　to　achieve　tracking　target　location　estimation　and　scale　estimation　on　the　basis　of　SRDCF.　Then,　the　tracking　correction　module　is　constructed　through　the　DDIS　algorithm,　and　combine　space　weight　and　correlation　filtering　score　to　achieve　accurate　estimation.　Finally,　the　adaptive　template　updating　strategy　is　utilized　to　solve　the　problem　of　tracking　drift.　We　use　OTB-2013　standard　data　set　to　evaluate　the　proposed　algorithm　in　this　paper,　and　compared　with　30　kinds　of　tracking　methods.　The　experimental　results　show　that　the　precision　score　and　success　rate　are　85.1%　and　64.6%　respectively,　which　prove　the　excellent　performance　of　the　algorithm　in　this　paper.