The invention discloses a rectifying antenna with a guiding signal transmitting function, which comprises a first dielectric plate, a second dielectric plate, a third dielectric plate, a microwave energy receiving antenna, a microwave feed network, a rectifying circuit, a guiding signal transmitting antenna, a grounding plate and a guiding feed network, wherein the first dielectric plate,, the second dielectric plate, a grounding plate and the third dielectric plate are stacked; the first dielectric plate is provided with the microwave energy receiving antenna and the microwave feed network; the microwave feed network is connected with the microwave energy receiving antenna and the rectifying circuit respectively; the second dielectric plate is provided with the guiding signal transmittingantenna; the third dielectric plate is provided with the guiding feed network; and the guiding feed network is respectively connected with the guiding signal transmitting antenna and the guiding signal transmitter. Through a dual-frequency antenna array, harmonic suppression and radiofrequency cancellation, microwave receiving rectification and guiding signal transmitting on the same aperture canbe realized, and the defects of a complicated angle measurement system when the traditional antenna is located at the array edge and a low transmission efficiency when the traditional antenna is located in the array center can be remedied.