Core contents of the standard: First, classification and model, clarifying the classification method and model coding rules of elevator door lock devices, which are divided into landing door lock devices and car door lock devices according to purpose; Second, comprehensive technical requirements, stipulating the technical requirements of elevator door lock devices such as structure, size, material, mechanical strength, electrical performance, safety performance, weather resistance, and fatigue performance; Third, unified test methods, unifying the test methods and test equipment requirements for various technical requirements of elevator door lock devices, especially the mechanical strength test and electrical safety test methods; Fourth, standardized inspection rules, clarifying the items, methods and judgment rules of factory inspection, type inspection and sampling inspection of elevator door lock devices; Fifth, installation and maintenance requirements, stipulating the installation, commissioning, acceptance requirements and regular inspection requirements of elevator door lock devices, and clarifying the service life and scrapping standards of door lock devices.