Using interviews and digital modeling of the human body to investigate the digital application of professional physical education in colleges and universities in Heilongjiang Province, analyze and explore the current problems in the digital application of physical education in colleges and universities. On this basis, it is proposed to strengthen the construction and improvement of the digital teaching system of college physical education, computer multimedia technology, multimedia courseware library, and address the problems of incomplete or incomplete facilities, inadequate development of operating platforms, and generally low teacher application capabilities. Strategic suggestions for optimizing the teaching of physical education courses in colleges and universities under the multimedia technology environment, and the efficiency increased by 7.28%.