The invention relates to an application method of an intelligent identification system in substation construction. The system comprises voice guide speaking devices and intelligent electronic chest cards. The application method of the system is characterized by, pre-setting sites in a working scene to install the voice guide speaking devices, so that when work personnel wearing the intelligent electronic chest cards go in or pass by the working scene, if the work personnel pass by in a close distance manner or approach to the voice guide speaking devices arranged in the working scene, the intelligent electronic chest cards can identify the corresponding radio frequency identification tags, namely, the number of the voice guide speaking devices; and after the identification passes, automatically broadcasting corresponding voice broadcasting, picture browsing and standard searching of the tags. Therefore, safety in-control state of scene safety is guaranteed; and through risk point voice broadcasting, scene safety state is guaranteed to be controllable, able to be controlled and in control, thereby guaranteeing the scene safety to be in an in-control condition, improving process standard of project quality, and realizing construction goals of scientific and intelligent management of the construction site.