This　paper　discusses　how　to　deal　with　the　greyness　problem　in　the　system　from　the　perspective　of　＂result＇＇.　Aiming　at　the　greyness　problem　of　the　traditional　grey　relational　analysis　result,　an　information　fusion　grey　relational　analysis　method　based　on　D-S　evidence　theory　and　multi　solution　information　fusion　is　proposed,　which　mends　the　traditional　grey　relational　analysis　method.　The　results　show　that　the　method　proposed　in　the　study　has　better　effect　than　the　traditional　grey　relational　analysis　method,　and　has　higher　accuracy　in　the　wear　particle　identification,　which　indicates　that　it　can　further　expand　the　application　scope　of　the　grey　relational　analysis　method.