This paper systematically analyzes the effect of traditional culture dissemination and its influencing factors in the digital environment by using a combination of educational technology, cultural communication and developmental psychology; at the same time, it conducts an experimental study on this basis, with a view to exploring a digital traditional culture dissemination method that is suitable for children and adolescents. With the help of network interactive communication technology, VR technology and other new media technology means, the measurement is carried out on the basis of using the communication effect measurement model. New media communication means have a positive effect on the degree of traditional culture knowledge mastery and traditional culture interest of young people, and have a positive effect on the traditional culture confidence of young people. Among them, abstraction, visualization and interesting means can deepen the audience’s impression of culture and attract their attention; multi-platform communication can expand the scope of cultural communication and achieve all-round coverage. Therefore, the results of this study can be used as an effective strategy for teachers in teaching practice, which is of positive reference and practical significance for realizing the modern transformation of traditional culture courses.