Background and Aim: Cultural communication is a kind of cultural continuity that has existed since the beginning of human civilization. "Kasdawen" dance is the most distinctive folk dance of Jiarong Tibetan people in western Sichuan, China. From the initial sacrificial hunting and production activities, it has gradually evolved into a folk sacrificial singing and dancing activity in funeral rites, and festival celebrations to worship Buddha and pray for peace. Taking the Tibetan folk dance "Kasdawen" in Heishui County, west Sichuan, China as a case study, this paper analyzes the communication content from three aspects: performance ceremony, performance form, and cultural connotation. Materials and Methods: This study adopts the qualitative research method of literature method, observation method, and interview method, and analyzes the data content. Most of the literature materials come from the county cultural centers or literature and history research centers in the research area, a small part comes from the library of Aba Prefecture, Sichuan Province, China Knowledge Network, and a small part comes from the people. The interviews mainly come from folk artists and outstanding contribution dancers and observe Tibetan social life. Results: In the research results, the communication contents of the "Castaven" dance performance ceremony are mainly divided into festival ceremony and sacrifice ceremony; The communication content of the dance performance form is mainly divided into dance form, style feature, and rhythm feature. The communication content of cultural connotation is mainly divided into patrilineal culture, Wuwu dance culture, and religious belief culture. Conclusion: The dissemination of "Kasdawen" dance culture is to spread the spirit and belief of Jiarong Tibetan nationality, and it is also hoped that the dissemination of the substantive content and spiritual value of "Kasdawen" dance culture will help protect and inherit Tibetan culture.