Disclosed is an apparatus for broadcasting emergency information, the apparatus including: an emergency information generator which analyzes service setup information related to general broadcasting information and generates emergency information based on a setup environment consistent with the service setup information; a broadcasting information processor which receives the general broadcasting information, transmits the service setup information to the emergency information generator, periodically monitors whether the service setup information is changed, changes a channel for the emergency information on the basis of monitoring results, and generates and modulates a first ensemble transmission interface (ETI) frame including the emergency information and the same channel as a fast information channel transporting control information about the general broadcasting information; a broadcasting information switching unit which selects and outputs one of the first ETI frame and a second ETI frame including the general broadcasting information; and a radio frequency (RF) transmitter which transmits the selected ETI frame through a RF.