For more than 40 years from 65438 to 0959, Zheng Dazhong has been working diligently in the teaching post of Tsinghua University control theory and application with strong dedication and high sense of responsibility. Both the initial course guidance and the subsequent lectures on undergraduate and postgraduate courses can devote themselves to study, constantly create a new situation in the teaching of control theory and become an influential and well-known professor in the field of control theory education in China. 1960- 1963 served as the tutor of the basic course Transition Process Analysis taught by Professor Zhong. In order to clarify the difficulties and key points of the course, he deduces every result and drills every exercise like a beginner; In order to give students targeted guidance, no matter how many class hours and exercises there are, he insists that everyone's questions should be changed and big mistakes should be pointed out; In order to strive for both strict requirements and basic concepts in the examination proposition, he carefully examines each examination question from the perspective of students and carefully considers what concepts, principles and abilities to test. This tutor career gave him valuable exercise and laid a solid foundation for his rigorous study in the future.

1977 just after the "cultural revolution", he quickly walked out of his confusion and devoted himself to his work, delving into modern control theory literature, and wrote two volumes of Modern Control Theory with nearly one million words in a short time, which were published in 1978 and 1979 respectively in the form of printed handouts. 1978, first taught in some teachers and students of the former automatic control department in Tsinghua University. 1979, taught in the workshop of modern control theory sponsored by the Education Committee of China Automation Society and attended by more than 70 colleges and universities in China 180 teachers. After 1980, these two volumes of handouts became popular as teaching materials and were widely taught in many universities across the country. During this period, many students majoring in automation in China grew up from learning these textbooks, which had a great influence on the teaching of control theory in China.

Zheng Dazhong's Theory of Linear Systems is regarded as the most authoritative work in the field of linear system theory in China. His related achievements in the research of linear system theory have been quoted and evaluated by famous scholars in the field of international control theory in authoritative review papers of international authoritative journals. His research group has made a series of important and systematic original achievements in the study of algebraic hierarchy theory of discrete event dynamic systems, which has made substantial contributions to promoting the establishment of algebraic hierarchy theory of discrete event dynamic systems.

1989, on the basis of teaching the graduate course "Linear System Theory" for many years, he made a further major update to the course system and teaching content, covering both time domain theory and complex frequency domain theory, and published a book "Linear System Theory" with 640,000 words. 1990, first published by Tsinghua University Publishing House, then published by China Taibei 1993. This textbook has been adopted as a textbook or reference book by nearly 100 universities in Chinese mainland and Taiwan Province, China, because of its novelty of system, academic and practical content, systematic and rigorous exposition, organic combination of physical intuition and mathematical rigor, and readability of words. It has become the most influential and popular textbook of its kind in China, and is regarded as the most authoritative book in the field of linear system theory in China. A peer expert once commented that compared with two textbooks in the same field, T.Kailath, Linear System, Prentice-Hall, 1980 and C.T.Chen, Linear System Theory and Design, Holt, Rinehart and Winston, 1984, "compared with T. It is richer and more comprehensive than C.T.Chen ","Even if it is introduced to the world, it will be competitive "and" it is a rare good textbook with linearity. Because of its outstanding achievements in creating a new situation in the teaching of control theory and teaching materials, it has won the first prize 1 time in Tsinghua University for outstanding achievements in teaching work, the second prize for three times and the first prize for outstanding teaching reform. The textbook "Theory of Linear Systems" compiled by him won the first prize of 1996 Excellent Textbook of the Ministry of Electronic Industry and the second prize of 1997 National Teaching Achievement Award, and was included in the first batch of 12 textbooks recommended by 1998 Graduate Work Office of the Ministry of Education. At present, he has written the second edition of Theory of Linear Systems with nearly 800,000 words, which will be published by Tsinghua University Publishing House soon. Zheng Dazhong's outstanding achievements in the teaching of control theory are also highly praised by international peers. In July, 1997, as one of the special guest speakers, was invited to give a special report entitled "Regulatory Education Reform in China" at the 2nd Asian Regulatory Conference "Regulatory Education Forum" held in Seoul. In July, 2000, Professor Wook Hyun Kwon, Chairman of the Association of Asian Control Professors (ACPA), and Professor Ivern Maris, Chairman of the ACPA Award Committee, jointly signed the first ACPA Control Education Award, awarding him "outstanding contribution to promoting control education in China and Asia through textbooks and outstanding leadership role in controlling teaching methods".