Objective: Prenatal diagnosis, postnatal followed up of three cases of cardiac tumor and successfulpostnatal surgery of one case.Methods: Treatment and postnatal followed up of three cases of cardiac tumor. Those cases were diagnosed by fetal echocardiography. One of them underwent a successful postnatal surgery.Results: Three fetuses were diagnosed with fetal cardiac tumor (capable of Rhabdomyoma) at 28, 27,38 gestational weeks. There were many tumors in one or two ventricles. These cases were referred to HueCentral Hospital for timing and location of delivery in 2019. One of them had obstruction of left ventricularoutflow tract with successful surgical resection at 46 hours after birth. One of them had heart failure afterbirth. Evolution of three cases was favorable, heart failure regressed, cardiac tumors regressed at 7 - 9months follow up.Conclusions: Fetal cardiac tumor can be diagnosed prenatally. Those three cases were capable ofrhabdomyoma due to the presence of muliple tumors and their regression after birth. Neonatal surgicaloption should be reserved for the risk of cardiac flow obstruction.