Amorphous　metallic　coatings　with　a　composition　of　Fe(48)Cr(15)Mo(14)C(15)B(6)Y(2)　were　prepared　by　means　of　atmospheric　plasma　spraying　(APS)　process　under　different　conditions.　The　microstructure　and　frictional　behavior　were　characterized　simultaneously　in　this　article.　The　results　show　that　the　as-deposited　coatings　consist　of　amorphous　matrix　and　some　precipitated　nanocrystals,　while　the　amorphous　fraction　and　particle　deformation　as　well　as　crystallization　mechanism　are　significantly　sensitive　to　the　spraying　parameters.　The　amorphous　coatings　express　high　microhardness　and　excellent　wear　resistance　under　dry　frictional　wear　condition,　which　attributes　to　the　inherent　characteristic　of　amorphous　phase　and　the　dispersion　strengthening　of　precipitated　nanocrystals.　The　dominant　wear　mechanism　of　the　amorphous　coatings　is　fatigue　wear　accompanying　with　oxidative　wear.　In　addition,　the　microhardness　and　wear　resistance　of　the　amorphous　coatings　were　improved　by　optimizing　spraying　parameters,　owing　to　the　effect　of　both　structural　character　and　proper　proportional　of　amorphous　and　nanocrystals　fraction.