Background: Ultimate Seeking is the factors that cause disorganized compromise and the difference between couples. The efficacy of couples therapy and acceptance based therapy on different variables in the lives of couples has been confirmed, but the main issue is that what therapy for couples is go undetected compromise? Aims: Comparing the effectiveness of couple therapy and acceptance-based therapy on the final of couples ' go undetected compromise. Method: The research was semi-experimental with pretest and posttest design with control group. The statistical population of the study included all couples compromise go undetected in Shiraz who referred to the family Court of Shiraz in 2018. Of this population, 90 people were selected as available and randomly divided into three groups (30 participants), 1, 2, and control. The tool includes acceptance-based treatment protocols (Khanjani, and the colleagues, 2016), Couples therapy (Razavi nemat Elahi et al., 2013), and the ultimate and Terry shorts questionnaire Karan, 1995). For three groups, the pre-test was performed, then intervention of couples therapy and acceptance-based therapy for two groups of experimental study, but for the control group, no intervention was applied. The results were analyzed by covariance analysis. Results: The results showed that there was a significant effect between behavioral therapy and acceptance-based therapy on the final of couples (p= 0/001). There was a significant difference between the two treatments in terms of final effect (P= 0/001). Therefore, acceptance-based therapy has a greater effect on the final reduction of negative seeking and final increase of positive seeking. (P<=0/05). Conclusions: it can be used for final reduction of negative seeking and final increase of positive seeking from acceptance-based treatment.