This book is the teaching material of science of Chinese characters for Chinese for foreigners. It is first published in 1993 and revised in 2003, and has certain influence in the field of Chinese teaching for foreigners. It has the following characteristics: 1. It runs through the ancient and modern society, and strives to introduce Chinese characters comprehensively, especially pays attention to the revealing of systematicness and regularity of Chinese characters. 2. It pays equal attention to the theory and practice. 3. It strives to explain the profound meanings in simple terms, and is easy to understand.