Harn Fei is the philosopher who inherits the pre-Chin Faa-jia thinkers' thinking. He constructs the Faa-jia's political philosophy with the guidelines of law, craft of manipulation, and power. The neutral view of humanity as self-interested and pragmatism also lie in the center of his doctrine. Lau Sy-Guang's critique of Harn Fei's philosophy in The History of Chinese Philosophy, Vol. 1 has obviously made too many improper presumptions, leading to a deficiency in the understanding of Ham Fei's thoughts. This article is to point out these deficiencies, and to clarify further and discuss them.