Multiple pregnancies pose a higher risk for both mother and baby than singleton pregnancies. Maternal and fetal morbidity and mortality rates can be reduced with the follow-up and management of multiple pregnancies. In this case study, it was aimed to provide systematic and evidence-based nursing care to a woman with multiple pregnancies in the prenatal period according to Gordon's Functional Health Patterns Model. Study data were obtained after obtaining consent from the pregnant woman and using semi-informed question instructions using interview, observation, patient file and a field in Gordon's Functional Health Pattern Model. The name of the pregnant woman was not included in the study and it was written as A.B. A.B was 28 years old and had a 34-week di chorionic di amniotic twin pregnancy. Gestational diabetes mellitus (DM) and gestational hypertension were diagnosed during the follow-up of her pregnancy. The patient, who was hospitalised in the perinatology service with the diagnosis of multiple pregnancy, was diagnosed with the nursing diagnoses of "ineffective health management, activity intolerance, lack of coping, disruption in sleep pattern, disruption in sexuality pattern, infection risk". The first three diagnoses were discussed and the nursing care plan was presented using NANDA-I, NIC, NOC systems. In conclusion, Gordon's Functional Health Pattern Model was considered as an appropriate model for systematic nursing care of a case with multiple pregnancy.