With a program deployment apparatus that is connected via a network to at least one physical server including a physical server with a virtualization facility for providing a virtual server to a client and deploys a program to the at least one physical server as necessary, and by a program deployment method for such a program deployment apparatus for deploying a program to the at least one physical server as necessary, one or more nodes which are connected via the network and are any of the physical server, the virtualization facility, and the virtual server are detected, first configuration information about a virtual layer of each detected node is acquired for each detected node, and the program is selectively deployed to the relevant node based on the first configuration information for each acquired node.