Marital satisfaction is a condition that needs to be pursued by a married couple. Every married couple wants their marital life to be happy, which can be assumed to fulfill physical and psychological needs. This study aims to examine the effect of mindfulness and style of assertive communication on marital satisfaction. This research is a quantitative study with a sample of 218 couples with a marriage age of 10-30 years. Hypothesis testing is carried out by regression test, showing the results that mindfulness and assertive communication style influence marriage satisfaction of married couples. Mindful regression test and communication style show that mindfulness influences the communication style of husband and wife. The implications of the results of this study, that mindfulness and communication style are important factors to increase marital satisfaction. Research results can be a reference for premarital couples counseling and marriage or marriage counseling.