Objective : To explore the intervention effect of mindfulness cognitive therapy on college students ‘ network deviant behavior. Methods : 40 subjects with network deviant behavior were selected from 720 subjects by using the network deviant behavior scale, and randomly assigned to the intervention group and the control group. The intervention group received group counseling of mindfulness cognitive therapy once a week for 8 weeks, and the control group did not receive any treatment. After intervention, the scores of mindfulness attention awareness scale and network deviant behavior scale were compared between the two groups before and after intervention. Results : The level of network bias before and after the intervention group was significantly reduced (p<0.001), while there was no significant change before and after the control group (p>0.05). Conclusion : Mindfulness cognitive therapy group counseling can effectively improve college students ‘ network deviation behavior.