To　get　the　high　activity　and　low　price　methane　combustion　catalyst,　a　fiber-supported　Pd　or　Pt　combustion　catalyst　has　been　developed.　The　influences　of　fiber　composition,　pre-treatment　process　of　support,　and　noble　metal　loading　on　the　catalyst　activity　have　been　investigated.　The　thermal　stability　of　catalysts　has　also　been　investigated.　The　experiment　results　have　revealed　as　follows:　1)　the　catalytic　activities　of　the　Pt　and　Pd　supported　on　the　high　alumina　fiber　of　Huayan　catalysts　are　higher　than　that　supported　on　other　fibers.　2)　The　catalytic　activity　depends　on　the　pre-treatment　process,　such　as　temperature,　treatment　time　and　concentration　of　HCl　solution,　and　the　best　treatment　condition　is　impregnation　in　HCl　solution　that　the　mass　fraction　is　1%　for　30　min　at　room　temperature.　3)　1.5%Pt/Z3　and　2.0%Pd/Z3　catalysts　possessed　more　activities　than　those　with　other　loadings.　The　methane　completed　conversion　has　been　obtained　over　1.5%　Pt/Z3　and　2.0%Pd/Z3　catalysts　at　temperatures　of　600°C　and　450°C,　respectively.　4)　2.0%Pd/Z3　catalyst　has　high　thermal　stability,　t50　only　increases　50°C　when　2.0%Pd/Z3　catalyst　has　been　aged　for　100　h　at　800°C.