Abstract:At present, the State Grid of China is in an important period of digital transformation. The "five E one center" cooperates with the construction of data center to create a new type of big data ecology. Firstly, according to the data characteristics of power material supply chain and the causes of data quality problems under the new environment of "five E one center", this paper puts forward the technical requirements of data quality management system of material supply chain. Secondly, the application of data sensing technology in data quality management of power material supply chain is analyzed from multiple dimensions. It is mainly divided into three modules: Multi-source perception data cleaning based on spatiotemporal correlation, heterogeneous abnormal data recovery technology based on hidden rule mining, and Holographic image recognition technology based on supplier information system identification. Finally, based on the development demand of life cycle management of power material supply chain ecosystem, the extension and application direction of data sensing technology are analyzed.