Event of mortality is basically the end of the accumulation process (outcome) of the various causes of mortality directly or indirectly. In Katingan, maternal mortality rate is above the national average since 2013, 2014, and 2015 respectively following cases 322.71, 556.52 cases, and 417.83 cases per 100,000 live births. Meanwhile, national targets are at 228 per 100,000 live births. McCarthy and Maine proposed three factors that influence maternal mortality is close determinants, determinants and determinants far between. Nutritional status, anemia, birth attendants, and the delay between the referral is a determinant of maternal mortality. The design / research design used in the study is analytic observational case control, which is a risk factor research study with retrospective approach. This study was conducted in Katingan for 7 months ie from February to August 2016. The control population consisted of all mothers postpartum in Katingan who did not experience maternal mortality during the years 2013 to 2015. The sample in this study as many as 32 cases. The results showed that the nutritional status, anemia status, and birth attendants have no significant relationship with maternal mortality, with a p-value respectively as follows 0,113, 0,113 and 0,024. However, delayed in reference has a significant association with maternal mortality with p-value = 0.0001. Keywords: nutritional status, anemia, birth attendants, maternal mortality