Spinning　structure　is　one　of　important　types　of　classical　gyroscopic　continua,　and　many　interesting　phenomena　of　the　gyroscopic　continua　have　been　found　due　to　the　gyroscopic　effect.　In　this　paper,　the　vibration　characteristic　analysis　of　the　spinning　cantilever　beam　is　studied.　The　two　linear　partial　differential　equations　governing　two　transverse　vibrations　are　derived　by　the　extended　Hamilton　principle.　The　ordinary　differential　dynamic　equations　are　obtained　by　using　the　modal　expansion　of　Galerkin　method.　The　natural　frequencies,　complex　modes,　and　stability　of　the　spinning　cantilever　beam　are　investigated　by　solving　the　standard　eigenvalue　problems　of　the　linearized　system　directly.　Some　novel　interesting　phenomena　have　been　obtained　numerically　and　important　conclusions　have　been　drawn　for　this　special　spinning　system.