The invention discloses a wireless frequency shift repeater. At present, a small repeater system or a small micro-distribution system introduces a signal through an external main antenna, and then covers a desired area through a re-transmitting antenna, which has the problems that the construction is troublesome, the equipment is numerous and complicated, the antenna position is fixed after completion, and the coverage area is fixed; and the wireless frequency shift repeater is used for solving the problems at present. The wireless frequency shift repeater comprises at least one AU terminal and one RU terminal; the AU terminal is in communication connection with a base station; the AU terminal is in communication connection with the RU terminal through a wireless protocol 5 GHz; and the RUterminal is in communication connection with a mobile phone. The wireless frequency shift repeater is composed of at least one AU terminal and one RU terminal; the AU terminals and the RU terminals perform networking through a wireless mode, which can support a plurality of RU terminals; and a low-frequency wireless signal is transferred to a 5 GHz high-frequency signal by using the frequency shift technology, so as to be transmitted among the AU terminals and the RU terminals; therefore, large-area signal blind zone coverage is realized, which is suitable for applications in buildings and basements.