Each year, more than 358,000 women worldwide die from childbirth related complications.rnUtilization of maternal health care services could save some of the unnecessary severerncomplications and death among women during pregnancy, delivery and after child birth. Numerousrnfactors contributed to maternal mortality such as characteristics of the women and the husband inrnwhich she is living, the type of illness that she encounters as well as effectiveness of the health carernsystem available in the surrounding. The purpose of thi s study is to investi gate the social, economicrnand demographic factors that affect women's use of maternal health care services in Bolososorernworeda, Wolaita zone of SNNPR. The survey was cross-sectional in des ign and conducted fromrnJanuary 20 to February 5, 201 2. A total of 633 women aged 15-49 who have had at least one livernbirth in the five years preceding the survey were selected using systematic random sampling.rnBivariate and multivariate analytical techniques are used assess the relationship between social,rneconomic and demographic factors and the maternal health care service utilization.rnThe result of the study showed that about 59%, 93% and 81 % of women did not receive antenatalrncare (ANC), del ivery care (DC) and skilled ass istance during delivery, respectively. Skill of HEWsrnin respondent opinion, women's work status, women's and husbands ' education and Women'srnexposure to media had a statically significant relationship wi th the utilization of antenatal care,rnmodern delivery care and skilled assistance during delivery.rnExcept Birth order other socio-economic and demographic variables are signi ficantly associatedrnwith all fo rms of maternal health care. The results of logistic regression indicate that Skill of HEWsrnin respondent opinion, women's work status, women' s and husband's education and Women'srnexposure to media remain the most significant variables affecting all forms of antenatal andrndelivery care utilization.rnFinding of the study, in general, showed that, improving the quality/skill of HEWs in respondentrnopinion, providing long term education of women and their husbands' as well as mass mediarncampaigns promoting health education would enhance low utilization level and coverage ofrnmaternal health care service in the area.