The invention discloses a multiple-transformer-substation start debugging panoramic monitoring system which comprises a voltage collection node, a current collection node, a wireless center master station, a local computer, a cloud server, and a remote computer. Both the voltage collection node and the current collection node are connected to the local computer through the wireless center master station. The local computer is connected to the cloud server which is connected to the remote computer. The invention also discloses the monitoring method of the system. According to the invention, the frequent telephone communication of field test personnel is not needed, the presence of directing personnel at each site is not needed, the data summary and analysis can be carried out before test completion, the remote command automation, the multiple-transformer-substation start debugging panorama and transient measuring and recording panorama can be realized, the operation is convenient, and the working efficiency is high.