Based on China's special conditions and characteristics of specific group of new-generation migrant workers, this article researches connotation of employment ability of new-generation migrant workers in China, that is, the connotation of employment ability of new-generation migrant workers in China should include four aspects: professional knowledge and skills, learning capacity, adaptability and environmental force. On this basis, through the analysis of indicators concerning connotation of employment ability, we get the overall characteristics of employment ability of new-generation migrant workers in China and reason responsible for its serious weakness. Finally we put forward corresponding countermeasures as follows: impart professional knowledge and skills; promote learning capacity; foster adaptive capacity; improve employment environment.