Decentralized data acquisition and node governance methods give oracles more potential, but because the entire industry is still in the early stages of development, the key technology of blockchain is far from mature, and the current mainstream decentralized oracle projects are not satisfactory in terms of protecting user privacy and universality. ZK-Oracle is an explorer of new generation of oracles. The ZK-Oracle network designed based on the Polkadot and the anonymous contract of SERO will be committed to solving the problems of privacy encryption and the universality of oracles, and has a great impact in providing assistance to the dynamic development of NFT ecosystem.