Sociology of Scientific Knowledge(SSK) originates from the Sociology of Scientific Knowledge,Philosophy of Science and Sociology of Science.It analyzes and studies the production process of scientific knowledge from the society angle and denies completely the objectivity of science.Scientism has been cleared up by SSK.SSK pointes out that the scientific fact and the scientific paper as well as the scientific knowledge which bases on the foundation may make through the scientific laboratory.The emergence and development of SSK which has made sciences status return rationally have great impact and significance.