International Organization for Standardization (ISO) and International Labor Organization (ILO) have studied and discussed the standardization of occupational safety and health management system. Many countries have also set up their own working groups to carry out research in this field and formulated this standard in their own countries or regions. In order to meet the growing global demand for occupational safety and health management system certification, organizations such as British Standards Institute (BSI), Norwegian Register of Shipping (DNV) and so on 1999, 13 put forward OHSAS standards, namely OHSAS 1800 1 and OHSAS180. 1999 10 the state economic and trade commission promulgated OSHMS (occupational safety and health management system). In order to meet the challenges of international labor standards and international economic integration faced by domestic enterprises after China's accession to the World Trade Organization, and standardize the behaviors of various intermediaries, the State Economic and Trade Commission issued the Guiding Opinions on Occupational Safety and Health Management System and the Audit Specification for Occupational Safety and Health Management System on the basis of the original work in February 20001. The latest edition is 2007. The Code for Audit of Occupational Safety and Health Management System inherits the successful thinking and management (PDCA) mode of ISO 1400 1. Due to the close relationship and similarity between the occupational safety and health management system and the environmental management system, its standard clauses and corresponding requirements also have many similarities (the close relationship between them can be seen from the schematic diagram of standard elements). At present, the occupational safety and health management system has been widely concerned, including employees and diversified stakeholders (such as residents, social organizations, suppliers, customers, investors, contractors, insurance companies, etc.). ). The standard requires the organization to establish and maintain an occupational safety and health management system, identify hazards and conduct risk assessment, and formulate corresponding control countermeasures and procedures to meet the requirements of laws and regulations and continuously improve. Within the organization, the real-time system is based on the principle of organizing the activities of all employees (including dispatched employees and employees of various cooperative departments), and the activities are carried out under a unified policy, which should provide a framework and guidance for occupational safety and health management and be open to all interested parties. OSHMS occupational safety and health management system is a general term. OHSAS occupational health and safety standards include 1800 1, 18002. OHSAS 1800 1 is a standard used by enterprises for certification, which specifies the requirements that certification should meet, while 18002 is an explanation of the requirements of 1800 1, and how to realize1800/kloc-. Management system.