Although　some　studies　have　explored　the　psychological　and　behavioral　outcomes　of　social　comparison　orientation　(SCO),　few　have　explored　the　associations　of　SCO　with　cyberbullying　perpetration　and　victimization.　The　current　study　aimed　to　investigate　the　associations　of　SCO　with　cyberbullying　perpetration　and　victimization,　and　considered　envy　on　social　networking　sites　(SNS)　as　a　mediator　and　body　satisfaction　as　a　moderator　in　these　relations.　To　test　our　expectations,　941　adolescents　aged　between　10　and　16　years　(M　=　13.15,　SD　=　1.18)　completed　multiple　questionnaires,　namely　the　Social　Comparison　Orientation　Scale,　the　Revised　Cyber　Bullying　Inventory,　an　envy　scale　revised　for　the　SNS　context,　and　the　Body　Areas　Satisfaction　Scale.　Correlation　analysis　revealed　that　cyberbullying　perpetration　and　cyberbullying　victimization　were　significantly　and　positively　correlated　with　SCO　and　envy　on　SNS,　and　significantly　and　negatively　correlated　with　body　satisfaction.　The　results　of　structural　equation　modeling　(SEM)　revealed　that　envy　on　SNS　played　a　mediating　role　in　the　associations　of　SCO　with　cyberbullying　perpetration　and　victimization.　The　results　of　SEM　and　simple　slope　test　analysis　indicated　that　body　satisfaction　weakened　the　direct　association　of　SCO　with　envy　on　SNS　and　further　weakened　the　indirect　associations　of　SCO　with　cyberbullying　perpetration　and　victimization　via　envy　on　SNS.　Specifically,　individuals　with　high　levels　of　SCO　were　more　likely　to　feel　envious　on　SNS,　and　further　tended　to　bully　others　and　be　bullied　online　when　they　were　dissatisfied　with　their　bodies.　In　other　words,　positive　body　satisfaction　protected　individuals　with　high　levels　of　SCO　from　cyberbullying　perpetration　and　victimization　by　decreasing　their　feelings　of　envy　on　SNS.