In the contemporary era, the internet has a notable role in the life and relationships of human beings. In this research, we try to present the most important effective aspects of internet on marital relationships, and inquire its dimensions. For this reason, nearly forty researches of last two recent decades (since 1995) were recognized, and qualitative content analysis was used to distinguish two important fields of internet effects on marital life: changes in everyday relationships, and changes in marital boundaries.The overall findings of these researches verify the effect of internet on these two realms, however the different aspects of this relationship should be considered. The effect of internet on everyday life of couples depends on the time, place, kind of consumption, and the situations and periods of a couple’s life. Some internet facilities like sexual content and cyber relationships have important effects on marital boundaries. These effects changes concerning some elements like the reason of consumption, mental, familial and gender backgrounds, and emotional and sexual relationships in the internet.