在世纪之交，我们迎来了新中国５０华诞。建国５０年的历程中，我国的劳动卫生和职业病防治事业，在组织机构、专业人员、学术交流、学科建设等方面，从无到有，从小到大迅速地发展起来。从中央到地方形成了劳动卫生与职业病防治研究体系，科学研究水平不断提高，取得了巨大的 At the turn of the century, we have welcomed the 50th birthday of New China. In the course of 50 years since the founding of our nation, the cause of labor and occupational disease prevention and control in our country has been developed from scratch, from small to large in the fields of organizations, professionals, academic exchanges and discipline construction. From the central government to local governments, a system of research on labor hygiene and occupational disease prevention and control has been formed, and the level of scientific research has been continuously improved. A tremendous