Disclosed by the present disclosure are a blockchain-based energy interaction apparatus, an energy internet system and interaction method, relating to the field of energy information. The energy interaction apparatus includes an energy information acquisition module and a blockchain node module, wherein the energy information acquisition module is configured to acquire energy information of an energy device; the blockchain node module is configured to write energy information into a blockchain network and acquire energy blocks from the blockchain network for information interaction. The energy information of the energy device is written into the blockchain network. Since each blockchain node saves the same energy information, the indestructibility and non-modification of key interactive information can be ensured during information interaction.
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