This　paper　reports　on　the　qualitative　and　quantitative　analyses　of　light　hydrocarbons　produced　by　radiation　degradation　of　N,N-diethylhydroxylamine.　The　results　show　that　when　the　absorbed　doses　are　between　10　and　1000　kGy,　the　main　light　hydrocarbons　are　methane,　ethane,　ethene,　propane　and　n-butane.　Their　volume　fractions　are　increased　with　the　increase　of　the　dose.　The　volume　fraction　of　ethene　is　also　increased　at　low　doses　with　the　increase　of　the　dose,　but　it　is　decreased　with　the　increase　of　dose　at　high　doses.