A　novel　method　based　on　texture　mapping　was　presented　to　improve　texture　of　3D　face　database.　Curve　fitting　and　linear　regression　were　used　to　fit　and　approximate　to　the　realistic　texture　space　based　on　texture　space　of　3D　face　database.　According　to　the　improved　texture　space,　the　texture　mapping　rule　was　established.　Then　the　texture　mapping　rule　was　used　to　improve　the　texture　of　3D　face　database　and　to　reduce　difference　between　texture　and　realistic　texture　of　3D　face　database.　Experimental　results　prove　that　difference　between　the　improved　texture　space　and　realistic　texture　space　is　smaller　than　that　between　texture　space　and　realistic　texture　space　of　3D　face　database.　When　the　improved　texture　is　used　in　process　of　model　matching,　the　speed　of　model　matching　gets　faster　with　shorter　time-consuming.