Deposition　of　contaminant　particles　on　the　blade　surface　of　gas　turbine　directly　affects　the　cooling　characteristics　of　turbine　blade,　which　can　reduce　the　safe　service　life　of　gas　turbine.　Many　foreign　research　institutes　have　conducted　continuous　investigations　on　the　characteristics　of　particle　deposition　on　turbine　blade　surface　and　its　interaction　with　film　cooling.　This　paper　firstly　summarizes　the　numerical　research　progress　of　particle　deposition　on　the　surface　of　gas　turbine　blades　in　recent　years.　The　deposition　mechanism　of　contaminant　particles　in　gas　turbine　cascade,　the　physical　model　for　particle　deposition　and　detachment,　and　the　numerical　simulation　methods　and　research　results　on　the　interaction　between　particle　deposition　and　turbine　blade　cooling　characteristics　are　emphatically　introduced.　Based　on　the　current　research　hotspots　and　development　trends,　combined　with　authors＇　research　experience,　the　concerned　issues　and　directions　during　the　process　of　developing　advanced　turbine　cooling　structures　in　China　are　pointed　out　in　this　paper.　The　results　of　this　paper　will　provide　a　technical　basis　for　the　independent　development　of　gas　turbine　technologies　with　high　efficiency　and　fuel　adaptability.　©　2020,　Science　Press.　All　right　reserved.