Abstract:This paper analyzes the characteristics of the current petroleum material qualification control system and the connotation of the blockchain. Combined with the distributed trust mechanism of blockchain, a new multi-level quality control system of petroleum materials based on the "double-chain mode" is put forward in this paper, which expounds the construction principle, operation mode, and data interaction implementation methods of the multi-level quality control system deeply, and gives the storage, sharing and quality problem tracing in the process of production information, ensure the authenticity and reliability of data in the process of information collection, storage and sharing,This paper also provides suggestions and references for the combination and application of blockchain and petroleum material quality control.