Elevator communication type five-party intercom system

An elevator communication type five-party talkback system comprises a car roof talkback device, a car talkback device, a pit talkback device, a machine room talkback device and a monitoring room talkback device. The car roof talkback device, the machine room talkback device and the monitoring room talkback device each comprise a controller, a CAN bus communication module, an acoustic-electric conversion module and an electro-acoustic conversion module. And the car intercom device is in communication connection with the car roof controller. The car roof talkback device, the pit talkback device and the machine room talkback device convert analog audio signals into digital audio data and then send the digital audio data to the CAN bus of the elevator to be transmitted, conversation is achieved, conversation lines in accompanying cables are omitted, the system cost and wiring complexity are reduced, harmonic interference in the elevator environment is not prone to occurring, and the safety of the elevator is impr