The　sprayed　particles　of　metallic　and　cermet　wires　were　collected　to　analyze　the　atomization　state　of　the　particles　in　arc　spraying　forming,　the　microstructure　and　properties　of　metallic　and　ceramic　coatings　were　investigated　and　compared.　Particle　size　analyzer　was　used　for　quantifying　particle　size.　The　XRD,　SEM　and　optical　nucroscope(OM)　were　used　to　analyze　the　phase　composition　and　microstructure　of　the　particles　and　coatings.　From　the　experimental　results,　some　difference　of　particle　characteristics　was　established　between　the　spraying　metallic　and　ceramic　cored　wires,　and　the　microstructure　and　properties　of　coatings　depend　strongly　on　the　particles　behaviors.　The　result　shows　that　Fe-TiB2/Al2O3　composite　coating　has　a　high　potential　for　abrasive　wear　applications.