To　the　problem　that　the　identify　of　software　and　hardware　information　in　the　reverse　analysis　of　Network　equipment　firmware　image,　a　firmware　header　parsing　scheme　based　on　matching　features　of　the　field　has　been　proposed.　Through　the　analysis　of　the　firmware　header　got　feature　values　and　build　signature　database,　then　use　matching　fields　to　identify　the　characteristics　firmware　header　information,　and　then　describes　the　basic　ideas　and　concrete　implementation　flow.　Experimental　results　show　that　the　scheme　can　be　obtained　analytical　results　more　accurately.