A method and a device for analyzing and processing an abnormal load on a premises broadcasting device are provided. More particularly, a method for analyzing and processing an abnormal load on a loudspeaker including a distribution line connected to an output of an amplifier for the premises broadcasting device is provided. The method includes the steps of: comparing and analyzing a real-time individual load value with an individual load value at the early stage of abnormality analysis for an individual loudspeaker load; and electrically separating only the loudspeaker load, including the distribution line corresponding to a short, from the output of the amplifier for the premises broadcasting device in the comparison and analysis step.