Online labor market has become one of the ways During job search in the information age because of its interactive, convenient and so on. Online labor market provides large data convenience for the study of scholars , while the employment effect of will be affected by culture,incomplete information, convenience of network facilities, language, educational level, and many other factors. These factors have a direct impact on the competitive ability of workers in the job market and the access to effective employment information, and there are also external non economic phenomena in the online labor market, for example, unfair allocation of resources, fraud, etc. The development of online labor market needs the government, information technology, and data users, and so on. It can play a better role in the allocation of resources.