This paper's purpose is discussed in Bruner's language acquisition. Bruner was not only understood the language partially of the thinking and development but also was grasped as a tool of the mind and a tool of the thinking. When the child acquired the language, he emphasized it as a tool that defined the meaning and the world to the entry of the culture. The method was achieved at the time of interaction between the mothers and children, when the young child acquires language, it was not to wait for advancement, insisted that it is hastened by environment. Thereupon, the structure in the acquisition of the language of Bruner in these some points was outlined, and the process of the language acquisition in relations between the interaction with mother and child and others was clarified.