IntroductionrnEthiopia is one of the countriesâ€™ most severely hit by HIV pandemic. According to the 2007rnsingle point HIV prevalence estimate of Ethiopia for the year 2010, 90,311 HIV positivernpregnant women and there were 14,276 annual HIV positive births. Preventing unintendedrnpregnancy among HIV-positive women constitutes a critical and cost-effective approach tornprimary prevention of mother-to-child transmission of HIV (PMTCT) and is a global publicrnhealth priority for addressing the desperate state of maternal and child health in HIV hyperendemicrnsettings, yet few data exist on contraceptive use among women entering HIV care.rnObjectives: To assess utilization of modern FP methods among women aged 18-49 years livingrnwith HIV/AIDS who are on chronic care follow up in Yirgalem public health facilities.rnMethods: The study used quantitative study methods in the form of Facility based crosssectionalrnsurvey supplemented by qualitative approach during the months of February to Aprilrn2014. Four hundred HIV positive women aged 18-49 years having HIV chronic follow up care inrnYirgalem public health facilities were included using systematic random sampling technique.rnStructured and pretested questionnaire was used to obtain information from the respondents andrnthe analysis was performed using SPSS version 21. Following descriptive statistics, bivariate,rnand multivariate methods of data analysis were employed. Strength of associations andrnsignificance level were examined using Odds ratio and 95% confidence intervals respectively.rnThematic analysis was used to analyze qualitative data.rnResult: Three hundred ninety seven women on chronic care follow up participated in the studyrnyielding a response rate of 99.3. Three hundred ninety seven (100%) of study participant werernever heard about modern family planning methods. More than half, 229 (57.7%), of thernrespondents were using modern FP methods at the time of the survey, of these, 111 (48%) werernusing dual contraceptive methods. Being secondary and above education (AOR: 4.63; 95% CI:rn(1.23-17.35), being married (AOR: 9.1; 95% CI: 3.81-25.58) and had peer support (AOR: 9.186;rn95% CI: (3.29-25.62) were more likely to use modern FP methods.rnConclusion and recommendation: In this study result showed that most of respondents werernusing modern FP methods. Almost half of them were using dual FP methods. Out of currentrnmodern FP users only one fourth of the women get FP service from the ART unit. ART/FPrnintegrated service and counseling on modern FP should be strengthened.