A video signal receiving device comprises signal processing units which separate video components and audio components from received signals conforming to HDMI standard, and carry out a decoding process on the components, respectively, to thereby restore analog video signals and audio signals, a detecting unit which detects a change in received signals to generate a first detection signal, and a detecting unit which detects a change in a received connection recognition signal to generate a second detection signal, and a mute control unit which carries out a mute process for the signal processing units not to output audio signals.