A Blend of the Rational Knowledge and the Perceptual One --The Distinction and the Relationship Between the Logical Thought and the Visualized One in Design Art HAN Chao (Art Dept., Suzhou Univ., Suzhou 232001, China) Abstract: When Design Art is in plan and into practice, the main thoughtways are the Logical Thought and Visualized Thought which all have the individual features, and the organic unity of both can provide a scientific method that more correctly deals with the relationship between Rational Knowledge and the Perceptual Knowledge in Design Art. Key words: Rational Knowledge; Perceptual Knowledge; Logical Thought; Visualized Thought