This article uses the employment situation of peasant workers in China as a case, with the texts of employment policy for peasant workers in 31 provincial administrative regions, and the fsQCA method from the perspective of configuration to explore the impact path of the employment policy to promote the employment of migrant workers from the perspective of conditional configuration, which reveals the influence path of single factor and multi-condition combination of employment policy on the employment of migrant workers. The study found that the employment of peasant workers needs an organic combination of different policy conditions to “adapt measures to local conditions”, while a single policy condition cannot produce the concurrent effect of promoting the employment of migrant workers. The provinces with demand-oriented policy tools such as “unimpeded right-safeguarding channel of peasant workers” and environment-oriented policy tools such as “strengthening the safety of work and occupational health protection of peasant workers” as the core policy conditions are more likely to produce more adequate employment of peasant workers. According to the analysis of conditions and result configuration, this paper analyzes the four influencing paths of the employment policy to absorb peasant workers employment, which includes environment-supporting dominant path, demand-supply push-pull path, demand-environment complementary path and demand-supply-environment linkage path.