An imaging system 10 is provided with a controller 15. The controller 15 perform a status control of an imaging device depending on attachment/detachment information indicating whether the imaging device and the information processing device are in an attachment status in which the imaging device and the information processing device are attached to each other or in a detachment status in which the imaging device and the information processing device are detached from each other. For example, the attachment/detachment determination unit 91 of the imaging device 20 determines whether the imaging device 20 and the information processing device 60 are in the attachment status or in the detachment status based on the attachment/detachment information, and the controller 45 performs the status control of the imaging device 20 based on the determination result. the attachment/detachment determination unit 91 of the information processing device 60 determines whether the imaging device 20 and the information processing device 60 are in the attachment status or in the detachment status based on the attachment/detachment information, and the controller 85 performs the status control of the imaging device 20 or the status control of the information processing device 60 based on the determination result. It is possible to easily perform the status control of the imaging device or the information processing device.