This　paper　reports　the　study　of　hydrogen　and　carbon　monoxide　produced　by　radiation　degradation　of　N,　N-dimethylhydroxylamine　(DMHA).　The　results　show　that　when　the　concentration　of　DMHA　is　between　0.1M-0.5M　and　the　dose　is　between　10-1000　kGy,　the　volume　fraction　of　hydrogen　is　very　high　and　increases　with　the　dose.　The　volume　fraction　of　hydrogen　is　little　dependent　on　the　concentration　of　DMHA　at　lower　dose　but　increases　with　increasing　concentration　of　DMHA　at　higher　dose.　The　volume　fraction　of　carbon　monoxide　is　very　low.