The invention discloses a control assembly of emergency lighting centralized power supplies, which includes an emergency lighting controller and a plurality of emergency lighting centralized power supplies. The emergency lighting controller is electrically connected with the emergency lighting centralized power supplies through a CAN bus, and information interaction is realized between the emergency lighting controller and the emergency lighting centralized power supplies. Each emergency lighting centralized power supply is connected with a plurality of emergency lighting lamps. Each emergencylighting centralized power supply includes a two-wire general circuit module and a three- or four-wire general circuit module, wherein the two-wire general circuit module is used for being connectedwith a two-wire emergency lighting lamp, the three- or four-wire general circuit module is used for being connected with a three- or four-wire emergency lighting lamp, and the two-wire general circuitmodule and the three- or four-wire general circuit module are in communication connection. The control assembly has the following advantages and effects: the control assembly can support two-wire, three-wire and four-wire emergency lighting lamps at the same time; the use of emergency lighting lamps is no longer limited; and the difficulty of project use and design and the complexity of maintenance can be reduced.