We aimed to investigate the interaction between pulmonary flow and myocardial motion in patients with repaired tetralogy of Fallot (rTOF). The 4D flow MRI and tissue phase mapping were employed to quantify the pulmonary flow and myocardial motion velocity, respectively. The pulmonary retrograde flow was correlated with left ventricular (LV) peak diastolic longitudinal velocity and time-to-peak (Vz and TTPz) in rTOF patients. Pulmonary pulsatility index was correlated with diastolic RV TTPr and LV TTPz. In conclusion, the correlation between abnormal pulmonary artery flow and altered myocardial motion may provide helpful information in evaluating the cardiac function in rTOF patients.