Since artificial intelligence has endowed intangible cultural heritage with four properties of digitalization, informatization, networking and intelligence, this paper studies the path of intangible cultural heritage protection, inheritance and dissemination. Combined with the background of virtual system, this paper expounds the significance of innovation platform for intangible heritage protection, and explores the measures of innovation mode for intangible heritage protection. This paper proposes to build a harmonious development model with the cultural industry, promote the production of intangible heritage protection, and train talents related to intangible heritage protection, so as to promote the participation of the whole people.