The invention relates to a rotary output device and a switch cabinet operating mechanism using the same. The rotary output device comprises a power output shaft, a power input shaft which drives the power output shaft to rotate through driving a transmission mechanism, and a bidirectional locking mechanism which locks the rotation of forward and backward directions of the power output shaft when the power output shaft rotates to a position, and the bidirectional locking mechanism has a locking state and an unlocking state. The invention provides the rotary output device, the power output shaft is driven by the power input shaft through driving the transmission mechanism, and when the power output shaft rotates to the position, the power output shaft is locked by using the bidirectional locking mechanism, the rotation of the power output shaft in the forward and backward directions is avoided, and thus the defect of a single direction limit is avoided.