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Introduction: Cervical cancer is the most common gynecologic cancer and the second common cancer of women in Worldwide. Pap smear is the most cost-effective way to reduce deaths from cervical cancer screening. The purpose of this study was to identify some  of effective factors that predict self-care pup behavior based on Women's health beliefs Coverage health centers in the city Karaj.

Materials and Methods: This cross-sectional study was performed with a total of 300 women 35 years and older that were referred to the research community health centers of Karaj. Data were collected by means of an interview form with the Health Belief Model Scale for Cervical Cancer and Pap smear. Content validity was determined by a poll of 10 experts the relevant fields and reliability was conducted on methods Cronbach's alpha and test-retest.

The data were analyzed by using descriptive statistics test by SPSS software.

Results: The results of the study showed that there was a statistically significant difference in, perceived benefits and barriers, and self-efficacy between women who had (67/3%of subjects)

And who had not Pap smear also Regression analysis revealed Perceived benefits, perceived barriers, self-efficacy are factors that predictor self-care behavior of pap smear.

Conclusion: The results of our study showed that perceived Benefits, perceived barriers and self-efficacy are predictors the Pap smear in women. Every time that woman have a greater understanding of the benefits of Pap and in parallel have Lower perceived barriers and higher self-efficacy will attempt to do a Pap smear.