Optical fiber attitude instrument

The utility model belongs to the technical field of navigation equipment, and particularly discloses an optical fiber attitude instrument which comprises an outer cover, a base, a bottom cover plate, a circuit module, a gyroscope module, an electric connector module and a data acquisition module. The base comprises a bottom plate and a mounting structure, the mounting structure comprises a bottom table, a first boss, a second boss and a third boss, and the first boss, the second boss and the bottom table are provided with a first groove, a second groove and a third groove respectively; a plurality of fourth bosses are arranged on the mounting structure; and a fifth boss is arranged in the mounting groove. The gyroscope module comprises a first gyroscope, a second gyroscope and a third gyroscope. All parts and components are installed on the base, the overall structure is compact, all the parts are relatively independent, specific parts are convenient to disassemble and maintain, and the problem that the attit