As the aftermath of the war drifted away, the Chinese government began to switch its prioritization from war efforts into developing literacy rates, implemented through a series of policy in language reform. By the time the State Commission on Language Reform was founded (1954), the number of students in the Linguistics Department increased rapidly and the department was merged into the Chinese Department at Peking University in Beijing, China. By then, Wang served as the department chair of the Department of Chinese Language Studies at Peking University, and was also a member of the Advisory Board of the Chinese Academy of Social Sciences and State Commission on Language Reform. He was actively engaged in the institution and transmission of pinyin (the romanization system of Mandarin Chinese pronunciation) and putonghua (Modern Standard Mandarin). Wang insisted that pinyin should be represented in the form of Latin alphabet, and Pinyin should be taught to students in the first year of school.