An object display system for a relationship graph includes an object information reception unit that receives object information from a terminal device. A node conversion unit converts the object information into a corresponding node and sets the node as a reference point node. A relationship graph extraction unit extracts a relationship graph containing the reference point node from a relationship graph database. A node relationship evaluation unit evaluates the relationship of each node to a reference point node by scores of two types of evaluation indexes. An object arrangement unit converts each node into a corresponding object and arranges each object converted from each node while making scores of two types of evaluation indexes by the node relationship evaluation unit that correspond to a two-dimensional coordinate. An object output unit outputs each object to the terminal device.