The utility model provides an all -round clinometer of fiber grating belongs to the sensor technology field, including casing, universal pendulum rod, minor axis, major axis and rotating turret, to divide into the universal pendulum rod upper end of pendulum and fix on the minor axis, in the rotating turret was alternately located with it to the major axis of locating the minor axis top, the minoraxis both ends were rotated with the rotating turret and are linked to each other, and the major axis both ends link to each other with the rotating turret is fixed, and the major axis both ends areconnected with the casing rotation, an eccentric cam excircle and the push rod of locating on the bogie of minor axis tip coordinate, and the push rod tip contacts with the free end of fixing the beamof constant strength on the bogie, long two epaxial eccentric cam's excircle and the contact of the 2nd beam of constant strength's free end, the 2nd beam of constant strength links to each other with the casing, all be equipped with the bragg grating strain who links to each other with fiber grating demodulation appearance on a beam of constant strength and the 2nd beam of constant strength, through the swing angle that bragg grating strain comes the universal pendulum rod of perception, confirm the inclination and the orientation of measured object.