A wireless image transfer system includes a transmitter and a receiver, the transmitter including: first and second image wireless blocks and a first control unit, the receiver including: a third image wireless block configured to receive a signal transmitted in a first frequency band to obtain a first image signal a fourth image wireless block configured to receive a signal transmitted in a second frequency band to obtain a second image signal a reception state acquisition unit configured to acquire information of a reception state an image quality judgement unit configured to judge image qualities of images based on the first and second image signals, respectively and a second control unit that selects the first image signal if the reception state is a good state, select the second image signal in a bad state, and select and output one of the first and second image signals in an intermediate state while switching the first and second image signals according to a judgement result of the image quality.
