Abstract： Objective To understand the changing trend of occupational hazard of industries in Shunde area and to provide the scientific evidence for the prevention of occupational diseases.Methods The pre-evaluation of occupational hazard was carried out for the construction projects,The data about employee number scale,industry species,occupational hazard factors,hazard levels and prevention measures for construction projects were collected and analyzed.The data of Shunde Occupational Health Survey in 2011 served as the control data,Results There were 258 construction projects in 2010 and 2011,in which the proportions of medium and large scales increased to 8.1％ and 2.4％ respectively,the proportions of the furniture and chemical industries decreased from 25.6％ or/and 5.1％ to 2.7％ or/and 1.8％,the proportions of the high-tech industries increased from 1.8％ to 9.2％.The proportions of the projects with serious,medium and slight occupational hazard levels were 4.3％,67.8％ and 27.9％,respectively.The proportions of the projects with harmful chemicals,dusts and physical factors were 34.2％、46.8％ 、42.6％,respectively.Conclusion The feature of occupational hazard in Shunde industries has changed at upgrading stage.We should pay attention to the prevention of occupational diseases in high-tech industries.