Background:Preconception care is a critical component of health which includes the provision of biomedical, behavioral, and social health interventions to women of reproductive age and couples before they conceive. As of 2011 sub-Saharan Africa report on maternal health shows that in sub-Saharan Africa there is a poor preconception care practice and this is due to low economic status, lack of health care providers, being illiterate and poor awareness about maternal health including preconception care. Preconception care (PCC) is the most important maternal health care service to reduce maternal and child mortality and morbidity by identifying and treating any risks early, promoting health, and preventing disease. Objective: To assess the proportion and determinant factors of preconception care among pregnant mothers attending ANC in three governmental hospitals,Ethiopia from April to July 2020 Methods: a facility-based cross-sectional study was done on 276 pregnant mothers attending ANC in three governmental hospitals in, Bahirdar, Ethiopia. Sample sizes for each hospital were assigned proportionally based on the previous months’report of each hospital. Data were collected through structured questionnaires. Crude and adjusted odds ratios with 95% CI were calculated. P-value < 0.05 was considered statistically significant. Results:This study revealed that utilization of preconception care is 20.8%,the educational status of high school (AOR=6.82 95% CI =1.69-27.55), educational status of college and above (AOR=9.8 95% CI=2.67-36.5), place of residence,(AOR=3.69,95%CI=1.26-10.78),women who had delivered 2-4 times(AOR=1.74,95%CI=0.61-4.93),women who had delivered >4 times (AOR=9.3, 95%CI =2.15-40.50),Bad obstetric history (AOR=10.15, 95% CI =4.05-25.43)and Chronic medical illness (AOR=5.81 95% CI =1.49-22.63) were found determining factors Conclusion:This study confirmed that the utilization of preconception care was found to below. Women’s educational status, place of residence, number of delivery, bad obstetric history, and chronic medical illness were found to be factors affecting the utilization of preconception care. Keywords:preconception care, governmental hospitals, pregnant women, Bahirdar