The paper analyzes the organization characteristics of institution description items in Chinese scientific and technical literature and the naming characteristics of Chinese institutions, expounds the common methods of institution name normalization and the process of institution name normalization for Chinese scientific and technical literature,and proposes that the methods of extracting the normalized institution names by using the methods of string matching, dictionary-based and rule-based filtering, calculating the co-occurrence rate of authors based on the co-occurrence relationship between institutions and authors, and disambiguating the institution entities through the number of absolute co-occurrence and the co-occurrence rate threshold, which can effectively match different forms of an institution.