Background: Maternal mortality & morbidity are key indicators of women's health globally. ICU admission rate represents as indicator of sever maternal morbidity. The aims of this study were to assess the hospital based rates of maternal morbidities and mortalities in ICU and to estimate indicators of ICU admission. Subject and methods: This study was done in ICU at Woman's Health Hospital, Assiut University. The convenient sample calculated statistically and was 200 women. Three tools were utilized for data collection; Patient socio-demographic data, Indicators for ICU admission and statistical sheet about maternal morbidity and mortality rates for one year. Results: This study revealed that ICU admission rate was (6.08%) and maternal mortality rate was (0.18%). The obstetric critically ill women participated in this study were most of them (68%) admitted for obstetric indications, (18.5%) had mixed obstetric with non-obstetric indications and the rest (13.5%) had non-obstetric indications only. Conclusions: Obstetric causes particularly hypertensive disorders and obstetric haemorrhages are common causes of ICU admissions and maternal mortality. Recommendations: Early diagnosis and proper treatment of high risk obstetric patient to reduce ICU admission rate and maternal mortality.