Digital music technology mainly refers to digital music production technology and multimedia operation technology. Digital music production technology is divided into software and hardware in two parts. Hardware includes the computer body and professional sound card, sound source, MIDI keyboard, tuning platform, and other external equipment. The research study determined that cognitive agility and performance related to stress through solfeggio era training. The Software, including music production and audio editing software, is the storage, editing, synthesis, transformation, output, and playback of digital sound information processing. Multimedia operation technology uses computers and related technical equipment to process text, graphics, images, audio, video, and other media information for digital collection, management, exchange, processing, systematic, and interactive operation technology. Although the digital education of video training in Chinese universities has grown steadily, there are still many deficiencies in the development of digital education: lack of scientific and systematic planning scheme; the leaders and teachers in schools lack sufficient professional knowledge and application technology of digital teaching; lack of efficient, practical and targeted digital teaching software. These are the problems that need to be overcome and solved in the development process of digital teaching. Because big data technology has a robust system and data information has the characteristics of a quantitative sea, in-depth analysis can be carried out to improve the integrity of teaching quality evaluation. This requires higher vocational colleges to apply big data technology to construct teaching quality evaluation systems and strive to play a positive role.