Fiber optic gyro north finder

The invention discloses a fiber optic gyro north finder. The fiber optic gyro north finder comprises a base, a transmission device, a rotating shaft, an indexing disk, a bracket, a cable I, a hollow cup motor, a motor outer seat, a motor base, a bearing part, a bearing outer pressure ring, a bearing inner pressure ring and a carbon film part, wherein the bracket is provided with a bracket chassis and a bracket body; the bracket chassis and the bracket body are connected integrally; the bracket body is perpendicular to the bracket chassis; the bracket chassis is fixed to the indexing disk; the bracket body is fixedly provided with a detection system and a circuit board; the detection system comprises an accelerator and a fiber optic gyro; the detection system is used for detecting gravity acceleration and a rotation horizontal component of an earth; the cable I penetrates out of the base after passing through a groove of the bracket chassis, a gap of the rotating shaft, a through hole of the rotating shaft and