The invention discloses wind-finding radar comprising a master control computer, a signal acquiring separator, a balance amplifying photoelectric detector, a radar speed calibrator, a pulse transmitter, an optical transceiving scanning system, an optical filter and an optical circulator. The radar speed calibrator comprises a fiber delay, a first microwave modulator and a first fiber coupler. The optical transceiving scanning system comprises a wind field scanning driver, an optical scanning prism and an optical transceiving antenna. The input end of the balance amplifying photoelectric detector is connected to the output end of the optical circulator. The wind-finding radar is simple in structure, low in cost, convenient to manufacture and maintain and handle and quick to move; for signal light and reference light, the fiber delay enables the signal light to pass 100m of an optical fiber and then enter a signal acquisition system, thus the signal light is delayed and the reference light and the signal light are effectively separated; the wind-finding radar is suitable for use in places with rain, ice and snow and flying birds and in any weather conditions.