A method of placing a virtual machine may include: calculating virtual machine workload information, which is a load of the physical machine applied by the virtual machine through a predetermined method of calculating a workload on the basis of information stored in storage and related to operations of the first physical machine and the second physical machine; calculating initial predicted virtual load information related to an initial predicted virtual load related to a load of the physical machine predicted due to the virtual machine for a predetermined period on the basis of the virtual machine workload; calculating search placement information related to a search placement which is a placement of the virtual machine on the first physical machine and the second physical machine through a predetermined method of calculating a search placement; and placing the virtual machine on the physical machine again on the basis of the selected search placement.