Abstract: A monitoring and managing method applied to a data center comprising racks is provided, wherein each rack comprises at least one electronic apparatus, and the monitoring and managing method comprises: capturing an image from a panel side of the racks to generate a first visible light image; capturing a non-visible light image of a heat dissipation side of the racks; using image recognition to determine the status of light signals and network ports of the at least one electronic apparatus and forming status information according to the first visible light image; storing the first visible light image and the non-visible light image; determining whether there is an abnormal event of the data center according to the first visible light image, the status information and profile of the data center.