Background: Cervical cancer is the fourth most common cancer among women. In 2018, 570 thousand new cases of cervical cancer occur globally. Cervical cancer screening (Pap smear testing) identifies pre-cancerous lesions at various stages. Promoting Pap smear-related behaviors with an appropriate educational method is important.Method: To assess the effect of a blended educational program to promote performing the PST among Iranian women. In a randomized control trial four main variables; knowledge, attitude, self-efficacy, and practice about PST was evaluated using a man–made questionnaire for PST. Women aged 18-49 living in Andimeshk (Khuzestan, Iran), covered by 16 health centers, and participated in study from November 2019 till April 2019. The educational intervention conducted to increasing women’s performing the PST. The experimental group received an intervention, whereas the control group received usual care. Participants were tested at four-time points: pre-test (baseline), post-test 1 (immediately after the program’s completion) post-test 2 (4 weeks after the program’s completion) and post-test 3 (12 weeks after the program completion).Results: A total of 84 women with average aged 32.27 (42 in the experimental group, 42 in the control group) were recruited from 16 health centers in Andimeshk, southern Iran. Significant group differences were found at different times in knowledge, attitude, self-efficacy, and practice about PSTConclusion: A blended method was effective in sustaining the effects of the educational program in the experimental group. The development of appropriate teaching method on restricted situation such as covid-19 pandemic to promote participation is suggested.Randomized controlled trial [IRCT20191206045626N1]