A remote maintenance system for medical image diagnostic apparatuses capable of preventing leak of personal information on the patient attached to a medical image. The system comprises an MRI apparatus (100), a server (300) installed in a service center of a company performing the maintenance service on the MRI apparatus (100), and a network facility (200) for interconnecting the server (300) and the MRI apparatus (100). The server (300) transmits a permission request for remote connection to the MRI apparatus (100) through the network facility (200). If the remote connection is permitted, a VPN control unit (8a) of the MRI apparatus (100) converts the personal information on the medical image into a concealed mark and transmits it along with the medical image to the server (300).
