In order to explore the role of local autonomy effect in the conceptualization, creation and structural perfection of digital music, the constraints of policies and laws on the conceptualization, creation and structure of digital music are analyzed. From the perspective of public management, this paper proposes three hypotheses. The role of local laws, regulations and local interventionist policies in promoting the concept and development of digital music, the acceptance and feedback of the conceptualization and creation of digital music by the public, the support of legal improvement, and the optimization of local governance structure. The results show that local autonomy is a prerequisite for the conceptualization, creation and structure improvement of digital music, and policies, laws and regulations have a positive effect on the effect of local autonomy. Therefore, local autonomy has a positive impact on the conceptualization, creation and structural perfection of digital music. Local policy governments should adopt intervention policies to strengthen the management and governance of digital music and restrain them through laws to lay the foundation for local governance and promote the effectiveness of local governance.