A resource searching device includes a requirement acquisition unit configured to acquire resource requirement information including resource requirements for a plurality of resources, the resources being related to a deployment request of a plurality of received resources and being related to devices or connections between the devices; a calculation unit configured to refer to system configuration information including information on the resources related to devices and connections between the devices in an information processing system to be managed, and to calculate fulfillment rate information including a fulfillment rate for each of the resources that satisfy the resource requirements; and a searching unit configured to search for a plurality of resources corresponding to the deployment request of the plurality of resources by sequentially selecting the resources that satisfy the resource requirements on the basis of the fulfillment rate information and the connections between the devices in the deployment request.