The embodiment of the invention discloses an elevator phone bridge method and system. The elevator phone bridge method comprises the following steps that: a call initiating end initiates a call making request, and requests PBS (Phone Bridge Service) resources from an AES (Access Equalization Service); the AES allocates the PBS resources to an SAS (Streaming Access Service), and instructs a corresponding PBS to allocate the resources; the SAS receiving the PBS resources informs the call initiating end to start a call operation, and initiates a call link request to the allocated PBS; a call initiating end starting the call operation is determined, and audio receiving and transmitting equipment is started in order to perform voice interaction; and the PBS receiving the call link request initiates a call to at least one set terminal, and establishes a call between the set terminal and the call initiating end through the SAS. Through adoption of the elevator phone bridge method and system, under the condition that a telephone module is unavailable in an elevator monitoring terminal, a function of making a call through a wired terminal is realized, and the elevator cost is lowered.