As chair of the APFAMA 2008 Congress Committee, I am pleased to invite you to attend the 6th Asian Pacific Congress of Aerospace Medicine which will take place from 25th to 28th August, 2008 in Xian, China. The Chinese Society of Aerospace Medicine (CSAM) will hold its 8th Chinese Conference of Aerospace Medicine in conjunction with the 6th Congress of APFAMA. We cordially welcome you to attend the Congress and share your expertise with us. Xi'an is a world-renowned city for its history and cultural relics. The Beijing Olympic Games in 2008 will provide you a unique opportunity to experience the hospitality of the Chinese People. I am sure that you will benefit from the congress at both personal and professional levels.