An energy saving monitoring method and device are provided. The method includes: acquiring system resource occupation information of an information technology (IT) device layer management system; sending a power-off instruction to the IT device layer management system according to the system resource occupation information, so that the IT device layer management system closes a virtual machine in a no-load state; and receiving a power-off feedback message sent by the IT device layer management system, and sending a cooling adjustment instruction to an infrastructure layer monitoring system according to a running state of a corresponding virtual machine in a cooling area where the closed virtual machine is located, so that the infrastructure layer monitoring system adjusts cooling deployment of the cooling area where the closed virtual machine is located.