In order to understand the life satisfaction status and the correlation between social support and life satisfaction of young migrants，and to provide theoretical basis for formulating targeted management and service measures，a questionnaire survey was conducted in March to May 2015．A total of 2998 qualified young migrants were selected and analyzed．The results show that young migrants in different regions have significantly different life satisfaction，with the life satisfaction in Beijing being the highest．Social support has significant positive influence on life satisfaction．Migration type，education， economic situation and health status have significant impact on life satisfaction of young migrants．Thus government departments should collaborate and combine with the specific situation of different regions to provide effective social support and improve life satisfaction of young migrants and social stability．