A large body of literature attests to the growing social divide between urban residents and rural–urban migrants in China’s cities. This study uses a randomised experiment to test the effect of intergroup contact on attitudes between a group of urban adolescents and a group of rural–urban migrant adolescents. Results showed that intergroup contact in the form of a fun and cooperative puzzle task significantly reduced negative attitudes toward the other group. Implications for desegregated schooling and their broader societal implications in China are discussed.