The aim of the present study was to compare the effectiveness of schema-based couple therapy and mindfulness-based couple therapy on positive feelings towards the spouse and interpersonal forgiveness in incompatible couples. The research method was a quasi-experimental study with two experimental groups (schema-based couple therapy and mindfulness-based couple therapy) and a control group in three stages: pre-test-post-test and follow-up. The sample size in this study was calculated with alpha of 0.05, statistical power of 0.8, assumed effect size of 0.7, and analysis of covariance method using POWER*G software. The study included 45 couples, who were selected through purposive sampling and randomly assigned to three groups (15 couples in each group). The control group did not receive any of the therapeutic interventions. The schema-based couple therapy group underwent 10 90-minute sessions of intervention. The mindfulness-based couple therapy group underwent 8 95-minute sessions of this intervention. In order to collect data, the questionnaires of positive feelings about the spouse by Lary and Torkiewicz (1978), and interpersonal forgiveness by Ehteshamzadeh et al. (2010) were used. The data were analyzed using the repeated measures analysis of variance test in SPSS31 software at a significance level of 0.05. The findings showed that both schema-based couple therapy and mindfulness-based couple therapy approaches have a positive and significant effect on positive feelings towards the spouse and interpersonal forgiveness;