Cantonese opera has been one of the most popular traditional art forms in Hong Kong since the late nineteenth century. Until the 1970s, it served as the primary form of entertainment and a significant cultural expression, attracting a substantial audience. However, following the advent of free television broadcasting, the leftist riots of 1967, and the influx of Hollywood films, along with Western and Taiwanese popular music in the 1970s, Cantonese opera began to decline. In the 2000s, the Hong Kong SAR government re-evaluated the significance of Cantonese opera after it was inscribed on UNESCO’s Intangible Cultural Heritage List in 2009. This recognition prompted the implementation of various policies aimed at promoting, preserving, and transmitting this art form. This chapter reviews the development of Cantonese opera in Hong Kong as a representative art form and examines various issues related to the transmission of the genre, the evolution of artistic styles and practices, and the future challenges associated with its preservation and promotion. The authors further propose strategies for transmitting Cantonese opera through educational initiatives in schools and communities, as well as how government policies could collaborate with civil organisations to ensure the preservation of this cultural heritage.