The purpose of this study was to determine the effectiveness of instructing marital enrichment and increasing of marital intimacy. This research is experimental with pretest and post test groups.A sample of 30 couples were randomly selected and assigned into control and experimental groups. The subjects in the experimental group participated in Marital Enrichment program (ME Experimental group received a 7 sessions, treatment each 2 hours per week.Marital Intimacy Questionnaire (MIQ) (Bahrami Oulia, 2006). Consists of 8 subscales (emotional, intellectual, social recreational activities, psychological, religious, sexual, communicational, Physical and total score) was applied to collect, the data.Instructing marital enrichment program improved the level of marital intimacy in experimental group. The Results showed that differences between groups were significant in total scale of intimacy. (F =16.36, P< 0.01) and all of the subscales (P < 0.05).The results of this research indicate that marital enrichment program (ME) could increase total marital intimacy could increase emotional, intellectual, psychological ,communication and social-recreational activities in marital intimacy, how every could not increase sexual, religious and physical marital intimacy.These findings are consistent with Zimpher, (1988), Olson & Fowers (1989), Guerney & Maxson, (1998). Hence ME could increase marital intimacy and decrease conflict between couples.