Abstract: “Cai Feng” is a unique form of metaphorical criticism in Wen XinDiao Long. It compares people's literary ability with the sharp tactile sensory form of utensils, and indicates the corresponding theoretical thought. Advocating “the edge of talent” is based on the logical combination of “Feng” and specific literary talents, which mainly includes the consistency of their revealing trend, vigorous characteristics and effect exertion process. The semantic similarity naturally leads to some characteristics of Liu Xie’s literary talent thought in cultural origin and worship form. The former is a breakthrough in the Taoist concept of “Cang Feng”, while the latter is an expansion of the artistic ideal of “Feng Gu” in the field of literary talent.