The purpose of this study was to explore the extent of children's access to media and the relation between the use of media and language development, including its determinants, among Korean-Chinese bilingual children in Yanji, China. Questionnaires were answered by 258 grade four students and their parents. The results indicated that these children had access to a variety of media (television, video cassette recorders, stereos, cassette recorders, computers, telephones, and mobile telephones). Specifically, the levels of home computer and Internet access were considerably high, with access rates of 49.4% and 24.5% respectively. The language used by the children (Korean or Chinese) while engaged with the media differed according to the type of media. They had more access to Korean newspapers, magazines, books, and radio. Our study indicated, however, that the children often used Chinese when using the computer. Television was the only form of media that was comparatively well-balanced, with children gaining access to programmes in both Korean and Chinese. Stepwise regression analyses revealed that the children's access to Chinese in media, the proficiency of the parents in Chinese, and parental affection as measured by the self-report were related to the children's level of proficiency in the Chinese language. Our study revealed that media may play an important role in the development of bilingualism and the mediation of parents plays a significant role as well.