This study aimed at identifying the most frequent Nursing Diagnoses and propose interventions for women under critical care into a maternal intensive care unit in a public hospital in Fortaleza, CE, Brazil. Retrospective study conducted with women's hospital health records. Ten Nursing Diagnoses were elaborated, being four risk: risk of infection, risk of unbalance of liquids volume, risk of aspiration, risk of damaged skin integrity and six real: altered maternity, impaired physical mobility, anxiety and impaired verbal communication. For the referred Nursing Diagnoses, nursing interventions are proposed according to the link between NANDA, NIC and NOC. It was concluded that the use of ND is a necessary technology for the Nursing reality, as it makes possible the integral care.