Research has revealed that underutilization of breast cancer screening by ethnic minorities often is related to language difficulties and cultural values and beliefs about cancer. The problem addressed in this secondary data analysis was the late diagnosis of breast cancer in the Chinese immigrant community. The purpose of the quasi-experimental study was to test the efficacy of a theatrical preschool performance, guided by the diffusion of innovation theory, in educating Chinese American women about breast cancer detection. The research questions sought to determine whether the performance increased the participants’ knowledge of breast cancer screening guidelines and whether country of origin, length of stay in the United States, and self-reported attentiveness were associated with knowledge gain of breast cancer screening guidelines. The preschool performance was performed by Chinese children ages 3 to 5 who displayed breast health guidelines from the Susan G. Komen for the Cure. One hundred and seventy-seven pre- and postperformance surveys were collected from a sample of Chinese women (84% foreign born). The secondary data were analyzed using standard linear regression analyses and bivariate logistic regressions. The findings demonstrated that promoting breast health screening guidelines among Chinese American women through a preschool theatrical performance significantly increased the participants’ knowledge of the guidelines. However, no major impact was detected between knowledge score and attentiveness to the theatrical performance and any of the demographic variables. Health care professionals can foster social change by adapting a preschool theatrical performance to educate ethnic communities on cancer control guidelines for early detection.