Previous brain neuro-imaging studies used functional magnetic resonance imaging (fMRI) to elucidate different human brain activities, and bilinguals used their second language (L2) to understand their first language (L1). So how do the first and second foreign languages work in the brain? Based on the study of Chinese and English bilingualism, this paper finds out that reading involves a unique language system, in which alphabetical English reading is formed by Chinese as a bilingual language. The results of brain activity in native English have been determined and some specific brain regions have been identified. However, many studies have shown that there are different activation modes between alphabetic languages and graphic languages. In this study, the subjects was asked to determine whether the two Japanese characters (or Chinese characters) were the same. When controlling tasks, the font size is determined to be 107 and 127 respectively. The subjects responded to the subjects by pressed the corresponding keys of the index their finger and the button corresponded to the middle finger of the right hand. Our conclusion is: second the nervous system of language reading is made up of mother tongue. Our findings support our conclusion.