Abstract
Language acquisition in children bilingualism is a process of transferring two languages in children, by both parents or the environment. This is what happened to Mira, Sasak tribe children seven years old who were given additional training by his parents in language tutorials (Bimbel X). In the growth process, Mira was happy and westernized with it. As a result of this teaching changes the psychology of the language behavior Mira. Changes in behavior accompanied by psychological conditions are getting better and better, marked by increased confidence and the growing motivation to learn. The purpose of this study to delineate the diverse happenings language acquisition bilingualism. Meanwhile, the theory of assessment used, namely the view Chomsky. The data collection refer to the methods and capable as well as basic techniques and derivatives, observation, and documentation. Data were analyzed with a descriptive qualitative method that aims to systematically delineate, categorization, and patterned. So in the end, produced the reality of the second language acquisition (English) is a positive impact on a child's language development.