Abstract: The aim of this study was to investigate the effects of mindfulness-based cognitive therapy on marital satisfaction of couples with autism child in Rasht, Iran. The population of the study was all the couples with autism children in welfare center of Rasht, Iran in 2015. The 10 couples with autistic children were selected randomly into two experimental and control groups of 10 patients. The marital satisfaction questionnaire of was used to collect the data and the experimental group participants received mindfulness therapy in an 8 weeks sessions. Data were analyzed by using analysis of covariance, the results showed that there was a significant difference between experimental and control groups; in terms of marital satisfaction (p≤0.05) this means that mindfulness training had a positive effect on satisfaction. In general, it can be concluded that mindfulness-based cognitive therapy approach by using techniques such as awareness of the unpleasant thoughts and emotions, meditation, yoga, etc. can make people to leave the negative effects of dysfunctional thoughts and attitudes and make marriage more efficient.