Lu-Fu of Tang dynasty is always a topic that books discussing the history of Chinese literature must incorporate. One of the many implications behind this argument is that in Tang dynasty, Lu-Fu was a canon. Based on this article, the reason why Lu-fu became a canon then is not only because the output of Lu-Fu was larger than that of Gu-Fu, but because of the authorities. In Tang dynasty, Lu-Fu was used as a means of screening people. And the content of the classics was often designated as examination questions. Hence, the scholars embraced the political and ethical values of these classics while learning by rote in order to come up with excellent Lu-Fu works. This was how the government turned scholars into public servants and its regime was consolidated.