Although PFT is widely used for diagnosis pulmonary disease, there has been continuing interest in the possibility of using MRI to detect the pulmonary function value such as FEV1, FVC and FEV/FVC. However, previous works acquired distribution of lung lesions and ventilation defect region. Here, we proposed a new method to evaluate lung function by MRI. We demonstrated its feasibility with six healthy subjects. Despite the number of subject was too small, the results show a correlation with the results of the PFT.