This paper aims to study job features and district differences of social workers. The recruitment data, on which this research is based, are acquired from four kinds of domestic vertical recruitment software, a piece of professional social worker recruitment software and a portal website under China Social Work Association. An automated crawler program written in Python language is used to crawl and parse the above six recruitment software / websites. The study shows that the overall recruitment scale of China’s social work industry is modest, the average salary of the post and the industry entry threshold are low, and the required professional qualifications are not strict.