This book focuses on the overlapping part of aesthetics and design science, applies the principles of aesthetics to design science, and studies the aesthetic law of design art. There shall be innovation in the research contents of design aesthetics, design art shall be studied as a whole, and the theoretical framework of design aesthetics shall be constructed based on design aesthetic characteristics theory, design aesthetic category theory, design aesthetic experience theory, design aesthetic culture theory, design aesthetic appreciation theory and design aesthetic criticism theory. There are aesthetic generality and individuality in specific design fields such as graphic design, product design, and environmental art design, and we shall explore their aesthetic individuality and avoid general aesthetic description.