It not only needs the "normative oriented" study but also the "value oriented" analysis of the government purchasing service. Due to the particularity of purchasing subject, financial capital, the particularity of the service object and regulation nationwide assessment, it determines the publicity being the inherent attributes of government purchase services with the objective requirements. Around the current government purchase services in practice, there are plenty of exploration to develop a different pattern, such as buying jobs and projects, etc., but lacking of publicity. So it needs to optimize and upgrade publicity of government purchasing service by developing a variety of subjects, developing the public service organization, setting up the public demand expression mechanism, and increasing public participation in evaluation.