The utility model relates to a wind cup type optical fiber Bragg grating wind speed and direction sensor, and belongs to the technical field of photoelectric measurement. Three wind cups mutually form an angle of 120 degrees, and a central axis of the wind cup 1# is perpendicular to the direction of due north; chamfered edges of the three wind cups are slotted to the centers of the wind cups respectively and connected to three equal-strength cantilever beam free ends at the centers of the wind cups respectively; the three equal-strength cantilever beams are fixed on the upper half part of a boss by adopting a spirally ascending mode; every two gratings are coupled and symmetrically pasted on the central axes of the front and back surfaces of each equal-strength cantilever beam; six optical fiber Bragg gratings are coupled in a base of the boss through an input/output optical fiber; and finally the input/output optical fiber is connected to an optical fiber grating signal demodulation instrument. The wind cup type optical fiber Bragg grating wind speed and direction sensor realizes real-time online monitoring of the wind speed and direction of a wind load alarm control unit by using special physical properties such as small size, anti-electromagnetic interference, long service life and the like of an optical fiber grating information material, thereby being high in anti-interference and accuracy.