The communication data of the entities in different security domains in the energy internet contains sensitive information. The ciphertext-policy attributebased encryption (CP-ABE) scheme can achieve fine-grained protection. However, the traditional CP-ABE scheme is complicated to decrypt, and the revocation of attributes requires a complete update of the entire ciphertext. Besides, its access policy is prone to leaking private information, resulting in its limited application in the energy Internet. In order to solve the above problems, based on the data sharing security of the energy internet cloud storage, we propose an energy internet data protection scheme based on a hidden access strategy. The access strategy supports arbitrary thresholds or Boolean expressions, and the attributes in the access strategy are obscured to realize policy hiding. The scheme introduce the decryption agent to outsource the main part of the high-complexity attributebased decryption process to the server, thus reducing the decryption overhead of the receiving end. The attribute revocation process only requires the attribute authority and the decryption agent to participate, so the difficulty of the process is reduced. Analysis on comparative experiments shows that the decryption performance of this scheme is greatly improved.