This paper explores the daily life of female Japanese spouses and the performance of their cultural citizenship under the constraints of the Taiwanese mainstream culture and social structure.. With in-depth interview of fifteen female Japanese spouses marrying Taiwanese men in Taiwan, and observation of two field sites where these spouses teach their children, this research finds that the ¡§cultural citizenship¡¨ of these Japanese spouses is not a static concept which marks the differences between Taiwanese and Japanese cultures, but a dynamic process that these Japanese spouses need to negotiate the daily Taiwanese cultures in everyday life, especially in the domain of language use and maternity performance.