The present disclosure provides a dual-backplane structure and electronic device using the same. The dual-backplane structure includes: a first backplane having an opening, and the front side of the first backplane includes at least one connector connected with a connector of the second assembly surface on a main board of a control module; a second backplane disposed on the back of the first backplane, the front side of the second backplane includes a connector connected with a connector of the first assembly surface on a main board of a control module; the back side of the second backplane includes a plurality of hard disk connectors for connecting with the hard disk module. At least one connector on the front side of the second backplane is connected with the connector corresponding to the first assembly surface on the main board through the opening of the first backplane.