**1. Introduction**

All nations and countries have intangible cultural heritage in various forms, which is an exact manifestation of diverse human civilization. In the context of global integration, many intangible cultural heritages are facing many common difficulties in inheritance and development. Network communication is an important way for the popularization and diffusion of intangible cultural heritage, among which HTML5 has become a common style in the digital communication of intangible cultural heritage due to its portability, compatibility, multimedia, and other characteristics [1]. This chapter focuses on the applet of HTML5 and the design practice of China's intangible cultural heritage as the main research theme, hoping to provide a preliminary view for the interactive design of intangible cultural heritage based on HTML5 from the perspectives of type, case, and design process.
