Bijie City is a typical multi-ethnic settlement. People of all ethnic groups have lived and multiplied on this land for generations，forming profound ethnic cultural deposits and rich ethnic cultural resources. With the implementation of the Big Data Strategy in Guizhou province，Bijie City is actively trying to integrate big data with other industries and promote the development of local undertakings with the characteristics of big data. From the perspective of digital protection，the paper sorts out intangible cultural heritage of Bijie City，explores the path of digital protection for Bijie intangible cultural heritage，analyzes the the status quo of Bijie intangible cultural heritage in legislation，law enforcement，judicial protection by digital protection to promote a legacy information system security of preservation and the realization of the open sharing of intangible resources，and promote the spread and communication of intangible cultural heritage，etc.