An apparatus for processing 3-Dimensional (3D) broadcast signals, comprises: a tuner for receiving broadcast signals containing 3D content; a service information processor for parsing target viewing information and at least one reference viewing condition information received from the broadcast signals which are received; a viewing analysis module for receiving viewing condition information of the viewer, parsing compensation-type information that is included in the reference viewing condition information, which contains information that is most relevant to the viewing condition information that is received, and for rendering the 3D content so that an element expressed by the correction-type information is maintained; and an output formatter for controlling so that the 3D content that is rendered is displayed.
