An energy Internet system, comprising: an alternating-current, AC, side energy routing conversion device comprising a plurality of first route ports; a direct-current, DC, side energy routing conversion device comprising a plurality of second route ports, wherein each of the plurality of second route ports is connected to a corresponding first route port by a corresponding DC busbar; and a plurality of energy devices, each connected to a DC busbar through a corresponding first AC/DC converter or a first DC/DC converter; wherein the AC side energy routing conversion device and the DC side energy routing conversion device are adapted to collect energy information of the plurality of energy devices, and are adapted to adjust energy of each of the plurality of energy devices on a basis of energy balance constraint conditions; wherein: the energy devices on each DC busbar comprise at least one of an energy storage device, a power consumption device, and a power generation device; the energy information comprises voltage parameters, current parameters, power parameters, and electricity quantity parameters; characterized in that: the AC side energy routing conversion device comprises a plurality of third AC/DC converters (510, 511, 512); first ends of the plurality of third AC/DC converters (510, 511, 512) are connected to each other, and a second end of each of the plurality of third AC/DC converters (510, 511, 512) is used as a first route port; the DC side energy routing conversion device comprises a plurality of third DC/DC converters (520, 521, 522); first ends of the plurality of third DC/DC converters (520, 521, 522) are connected to each other, and a second end of each of the plurality of third DC/DC converters (520, 521, 522) is used as a second route port. an alternating-current, AC, side energy routing conversion device comprising a plurality of first route ports; a direct-current, DC, side energy routing conversion device comprising a plurality of second route ports, wherein each of the plurality of second route ports is connected to a corresponding first route port by a corresponding DC busbar; and a plurality of energy devices, each connected to a DC busbar through a corresponding first AC/DC converter or a first DC/DC converter; wherein the AC side energy routing conversion device and the DC side energy routing conversion device are adapted to collect energy information of the plurality of energy devices, and are adapted to adjust energy of each of the plurality of energy devices on a basis of energy balance constraint conditions; wherein: the energy devices on each DC busbar comprise at least one of an energy storage device, a power consumption device, and a power generation device; the energy information comprises voltage parameters, current parameters, power parameters, and electricity quantity parameters; characterized in that: the AC side energy routing conversion device comprises a plurality of third AC/DC converters (510, 511, 512); first ends of the plurality of third AC/DC converters (510, 511, 512) are connected to each other, and a second end of each of the plurality of third AC/DC converters (510, 511, 512) is used as a first route port; the DC side energy routing conversion device comprises a plurality of third DC/DC converters (520, 521, 522); first ends of the plurality of third DC/DC converters (520, 521, 522) are connected to each other, and a second end of each of the plurality of third DC/DC converters (520, 521, 522) is used as a second route port. the AC side energy routing conversion device comprises a plurality of third AC/DC converters (510, 511, 512); first ends of the plurality of third AC/DC converters (510, 511, 512) are connected to each other, and a second end of each of the plurality of third AC/DC converters (510, 511, 512) is used as a first route port; the DC side energy routing conversion device comprises a plurality of third DC/DC converters (520, 521, 522); first ends of the plurality of third DC/DC converters (520, 521, 522) are connected to each other, and a second end of each of the plurality of third DC/DC converters (520, 521, 522) is used as a second route port.