The invention relates to a dual-backup programmable central control system. The dual-backup programmable central control system comprises a main control module as well as a first control module and a second control module which are mutually independent, wherein the first control module and the second control module are connected with the main control module respectively; each of the first control module and the second control module correspondingly comprises a network module, a serial port module, a relay module, a digit module and an infrared module respectively, and the network modules, the serial port modules, the relay modules, the digital modules and the infrared modules correspondingly are connected with a network interface, a serial interface, a relay interface, digital input/output interfaces and infrared input/output interfaces respectively; the serial interface comprises a user control serial port and a programmable control serial port; and the main control module is connected with a power supply module and a touch control screen respectively. The dual-backup programmable central control system has complete functions and stable performance, is simple and convenient to use, and can meet the requirements of a high-end multimedia conferencing system for high stability, high reliability and the like.