A gimbal for controlling an optical device includes a control device and a controlling assembly. The control device is configured to receive an action instruction and generate a control instruction based on the action instruction. The action instruction includes a press action instruction, and the control instruction includes a switch control instruction for switching the gimbal from a first operating mode to a second operating mode. The first operating mode and the second operating mode cause different relative movements between the gimbal and the optical device. The controlling assembly is configured to receive the control instruction from the control device and generate a performing instruction based on the control instruction for controlling the optical device.