Abstract: It is an effective means to solve the difficulty of accountability for objection scheduling to make reliable storage of power dispatch instructions on blockchain. Power dispatching contains highly sensitive content such as command initiators, receivers, and dispatching commands. The dispatching command storage must verify the compliance of recipients and dispatching commands while ensuring the privacy of sensitive content, and track the initiator when objection to dispatch occurs. Most of the existing Blockchain Storage and Certificate Scheme adopts a centralized management method, which is contrary to the blockchain distributed setting. According to the specific requirements of power dispatching storage, a blockchain certificate storage scheme is designed that supports the privacy and traceability of the dispatcher's identity, the privacy and compliance of the receiver's identity and dispatching instructions. Encode the identity of the recipient and the scheduling instruction, and store it on the blockchain after being encrypted by the commitment and providing the corresponding zero-knowledge proof to ensure the compliance of the commitment ciphertext. The traditional group signature algorithm is improved by using the secret sharing scheme, and the number of group administrators is expanded from one party to multiple parties without affecting the efficiency of signature and verification. When an objection scheduling occurs, multiple group administrators jointly track the identity of the initiator of the objection scheduling, and reveal the identity of the receiver and the scheduling instruction information. Theoretical analysis shows that the scheme has higher security, and experimental results show that the implementation efficiency of the scheme meets the implementation requirements.