In recent years, the rapid expansion of heritage tourism within China’s ethnic minority regions has been accompanied by a significant challenge: the homogenization of cultural tourism imagery and experiences. This phenomenon adversely affects the sustainable development of local tourism industries. To foster the effective integration, preservation, and development of heritage tourism and ethnic cultures, this study presents a case analysis of Xijiang Qianhu Miao Village in Guizhou Province. Drawing upon field research and systematic analysis, the paper critically examines manifestations of homogenization across four key dimensions: cultural image representation, commercial operational models, experiential tourism methodologies, and the depth of cultural engagement. Based on these findings, the study proposes targeted strategies to optimize the cultural tourism experience within this specific context.