Background: Ethiopia is the second most populous country in Sub-Saharan Africa. TotalrnFertility Rate of Ethiopia is 4.8 children per women, population growth rate is estimated to bern2.7% per year and contraceptive prevalence rate is only 29 % while the unmet need for familyrnplanning is 34%. Overall awareness of Family Planning methods is high, at 87%. The prevalencernof long acting and permanent contraceptive methods (LAPMs) in Oromia region is low (26.2%rnfor any method) which accounts for 24.9% for modern method and 0.3% users for intra-uterinerncontraceptive device (IUCD) and 0.2% for female sterilization.rnObjective: To assess factors influencing utilization of long acting and permanent contraceptivernmethods and associated factors among women of age group 18-49 years in Ambo town, westrnshoa Zone, Ethiopia.rnMethods: A descriptive cross-sectional community-based study was conducted between Aprilrn20- May /2014 in Ambo town of West Shoa Zone, Oromia National Regional State, and WestrnEthiopia. A total of 384 of married women were selected for the study with a multistage clusterrnsampling.rnResults: The study consisted of quantitative and qualitative data. From the quantitative part ofrnthe study the response rate of the study was 100%. Majority of the married women at Amborntown used implants from LAMPs (57%) and few of them practiced the female sterilization andrnvasectomy. About one third of the married women (34 %) had never practiced LAMPs and hadrnnegative attitude towards practicing of LAPMs. The overall prevalence of LAPMs use wasrn65.6% however; there were few users for female sterilization (6.2%) or male sterilization (.3%)rnMothers who had high income were 4 times more likely to use LAPMs as compared with thosernwho had low income (AOR = 3.6, 95% CI of (1.494, 8.741). Mothers who were orthodox andrnwere 5 times more likely to use LAPM as compared with those who had other religion (AOR =rn4.715, 95% CI of (1.026, 21.67) and protestant were 8 times to others in practicing the LAMPs(rnAOR =8.492, 95% CI of (1.710-42.173).rnConclusion: Educational level, Religion, payment for service and media, Number of pregnancyrnhas statistical significance with utilization of long acting and permanent contraceptives methods.rnThe prevalence of utilization of LAMPs for married women of Ambo town was 65.3%. Morernthan half of the married women used implants which control Pregnancy for three years . Arnsignificant amount of the participants had low knowledge on permanent contraceptivernparticularly vasectomy. Few of married women use female sterilization and vasectomy.rnRecommendationsrnThe Health Berau of Ambo town should encourage public and private institutions to givernContinuous health education on LAPMs, increase availability of LAPMs services andrninformation education communication should focus on addressing the needs of long acting andrnpermanent contraceptive methods of married women