Abstract: In China, significant similarities can be found in Beijing, Shanghai and Guangzhou when they comes to the city size, development, population background and also the number of migrant children. However, it doesn't produce the similar policy effects, different education patterns are formed in in the process to solve the problem of migrant children compulsory education instead. why does one central policy lead to three different effects in these highly resembled cities? In order to answer this question, the study on Beijing, Shanghai and Guangzhou's analysis and implementation of central policy over past decade is necessary. Relying mainly on local governments and public schools as the policy framework aiming to solve the problem of migrant children education, this study will compare local government's responsibility and education investment, the access to public schools and the development of non-publicly funded migrant school among these three cities. Beijing, Shanghai and Guangzhou implement the central policy in different ways, thus the different solutions of migrant children education are taken, and different patterns are formed in cities above.