As a kind of practical quantum cryptography protocol, quantum private information retrieval (QPIR) can protect the privacy of both the user and the database while a user retrieving an entry from the database. Most existing QPIR protocols support database retrieval by only single-user, and when the same entry is expected to be retrieved by multiple users, the protocol needs to be repeated between each user and the database. In order to solve the specific scenario that multiple users in the power grid system need to securely obtain the same entry through distributed terminals, this paper proposes a new multi-user semi-quantum private information retrieval protocol. The protocol is based on the Bell state, which is simpler than the multi-particle entangled state. It also doesn’t require the distributed terminals to have full quantum capabilities, which reduces the difficulty of protocol implementation. In addition, we analyze the security of the protocol to prove that the protocol can effectively prevent the data associated with sensitive information from being leaked, and both user privacy and database privacy are guaranteed.