Laser　colorful　marking　in　metal　is　a　novel　marking　technology　and　can　be　used　in　wide　field　such　as　brand　logos,　artworks,　decorations　and　forgery　resistance.　This　paper　introduces　a　method　of　marking　colorful　area　in　stainless　steel　by　using　pulsed　fiber　laser.　Additionally　galvanometer　and　f-theta　lens　have　been　employed　in　delivering　and　focusing　laser　beam.　Various　colorful　area　expressions　have　been　attempted.　Morphological　characteristics　and　component　in　samples　with　various　colorful　areas　have　been　investigated　through　SEM　and　XRD.　Marking　colorful　area　in　metal　by　laser　related　to　process　of　metal　heat　treatment　are　discussed.　It　makes　possible　to　create　more　other　color　area　in　other　metals　through　optimizing　process　parameters　by　laser　marking.