To understand the annual performance of designated hospitals responsible for the diagnosis and treatment of occupational injuries and diseases in Taiwan, the Occupational Safety and Health Administration (OSHA) of the Ministry of Labor commissioned the Occupational Safety and Health Prestation and Rehabilitation Center to compile data from January to December 2023. The report includes the notification records and treatment outcomes of occupational injuries and diseases from designated hospitals, as well as consolidated findings from high-risk factor investigations and cluster investigations. This compilation is provided as a reference for relevant stakeholders.