Antenatal care is a critical component of maternal healthcare that helps in reducing maternal mortality and morbidity. Service delivery by healthcare workers during antenatal significantly impact the quality of care provided and utilisation of services. examined antenatal care service delivery and utilisation in Federal Medical Centre (FMC) Makurdi. Specifically, the study assessed the attitude of healthcare workers towards pregnant women during antenatal care services delivery and evaluated how the attitude of healthcare workers affects pregnant women's utilisation of antenatal care services. Andersen behavioural model of health service utilization was utilized. The study was a cross sectional survey of pregnant women. 424 Respondents were purposively selected. Questionnaire and Key Informant Interview (KII) guides were used to collect data. Data were analyzed using frequency distribution tables, Chi-square, and content analysis. The study revealed attitude of healthcare workers towards pregnant women's attending antenatal care services to include being ignored/neglected when needing attention (50.6%), rude behaviour (53.4%), not being attended to on time (51.1%), inadequate attention (56.5%), discriminatory attittude (58.0%) and verbal abuse (53.7%). The attitude of health workers was found to discourage antenatal attendance, bypassing some sections during antenatal, reluctant in keeping up with appointments, discouraged women from asking questions during health education among other effects. The study recommended that the management of the Federal Medical Centre should install closed-circuit television (CCTV) cameras along antenatal service units to help monitor attitude of workers.