An apparatus and method for processing DMB signals in a DMB receiver such as a mobile communication terminal are disclosed to simplify the DMB receiver. The apparatus for processing DMB signals received via at least two antennas includes: an antenna switching unit for selecting one of at least two signals received via the two antennas; a DMB path unit for pre-processing the selected signal; and a DMB chipset unit for detecting a signal level of the pre-processed signal, and controlling the antenna switching unit, wherein the DMB chipset unit controls the antenna switching unit to select the other one of the two signals according to the signal level detected by the DMB chipset unit.