Automatic fire-fighting skylight suitable for IDC machine room cold channel and control system thereof

The invention provides an automatic fire-fighting skylight suitable for an IDC machine room cold channel and a control system thereof. A dragging portion for dragging the skylight to achieve closing is separated from the skylight and is arranged on a skylight frame. A fire-fighting system suitable for gas fire suppression can automatically close the skylight on the premise that the mode that an electromagnet is electrified to lock the skylight and is powered off to open the skylight is not influenced, and a skylight closing mechanism does not influence other operation.