The invention discloses a double-energy storage operating mechanism of a single operating shaft, which is used for automatic transfer switching equipment and comprises an operating handle or an operating motor, a transmission gear and energy storage mechanisms, wherein the operating handle or the operating motor is positioned at the first side of an installation plate of an operating mechanism ofthe automatic transfer switching equipment and is sheathed in a first operating cam main shaft of the operating mechanism, and the first operating cam main shaft is driven to rotate by the operating handle and operating motor; the transmission gear is positioned at the second side of the operating mechanism and is connected with the first operating cam main shaft and a second operating cam main shaft of the operating mechanism, and the second operating cam main shaft is driven to rotate by the rotation of the first operating cam main shaft through the transmission gear; and the energy storagemechanisms are connected to the first operating cam main shaft through a first cam, are also connected to the second operating cam main shaft through a second cam, and are respectively driven to store energy by the rotation of the first operating cam main shaft and the second operating cam main shaft through the first cam and the second cam.