On Oct. 20-22, 2001, a commemorating meeting for the 20th anniversary on the founding of Chinese Association of Integration of Traditional and Western Medicine (CAIM) and the start publication of Chinese Journal of Integrated Traditional and Western Medicine (CJIM) was held in Xi'’an, 436 participants from various provinces and districts, as well as Taiwan province attended the meeting. Rapid development and outstanding achievements were summarized by Prof. Wei BEI-hai, Vice-President of CAIM. Since 1981, CAIM has held 12 international and 380 national academic conferences, 62,000 member-times participated the meetings, the CAIM member increased from 13,000 to 52,000 in 20 years. There are 57 integrated hospitals, over 30 integrated institutes, 10 integrated journals, 35 specialty committees nationwide. Some well-known scholars delivered special lectures, such as Prof. XU Xiao-jie of Peking University (“Chemistry and Chinese Medicine”), Prof. HOU Can from Sun Yat-sen University of Medical Sciences (“Unified Medicine of Post-Gene Era”), Prof. Yang Sze Piao of Taiwan Association of Integrated Medicine (“Education of New Generation Chinese Medical Practitioner of Taiwan”) and other 5 scholars'’ lectures. Deputy Director of Editorial Board CHEN Dong-yan reported that CJIM ( Chinese edition) has published 21 volumes, particularly the citation frequency listed 1st among 2 804 scientific journals in China 1999, indicating the quality of this journal is high. Prof. WANG Wen-jian of Shanghai has been elected as Vice President of CAIM, and Prof. ZHAO Jian-xiong elected as member of director board of CAIM. Prof. SHE Jin, on behalf of State Administration of TCM (SATCM), delivered a speech entitled “4 Famous Veteran TCM Practitioners in Beijing and Integrated Medicine” to congratulate the convening of the meeting. Academician of Chinese Academy of Sciences, President of CAIM Prof. CHEN Ke-ji chaired the meeting, he said, “Past 20 years was the developing and rapidly expanding 20 years under the governmental policy of ‘integrating Chinese and western medicine’ despite many difficulties have been conquered”, he strengthened in his opening speech, “This meeting would inspire the huge passion of engaging in integrating both medicines as well as creating in clinical practice, strive to rally together Chinese and western practitioners, to promote academic exchange of integrated medicine at home and abroad, so as to realize the modernization of Chinese medicine, enrich the world medicine and contribute to the health of mankind”.