ISO45001 Occupational health and safety management system standards is an international occupational safety and health management system evaluation series of standards. ISO45001 Occupational health and safety management system and quality management system, environmental management system, known as the three systems.

The International Organization for Standardization (ISO) officially issued ISO45001:2018 "Occupational Health and Safety Management System Requirements and Guidelines for Use" on March 12, 2018. Iso 45001:2018 is the world's first international standard on occupational health and safety, which replaces the previous OHSAS18001 standard.