Upgrading data processing method, upper computer, lower computer, equipment and storage medium

The invention provides an upgrade data processing method, an upper computer, a lower computer, equipment and a storage medium, and belongs to the field of software technology. The method is applied to the upper computer, the upper computer is in communication connection with the lower computer, and the method comprises the following steps: dividing an upgrade target file into a plurality of upgrade data packets, and sending the upgrade data packets in a mode that a row of upgrade data is sent each time; and continuously sending the upgrading data in the single upgrading data packet to the lower computer until the upgrading data in the single upgrading data packet is completely sent, sending a packet ending command to the lower computer, and after receiving an idle command sent by the lower computer, continuously sending a row of upgrading data every time, and continuously sending the upgrading data of the next upgrading data packet to the lower computer until the lower computer receives the upgrading target f