1. A surveying system, comprising: a position relation calculating processor that calculates a positional relation between a coordinate system to which measurement information of a measurement point refers and a schematic image of a surveying field, in which said schematic image includes a staking point; a correspondence establishing processor that establishes correspondence between three-dimensional position information of said staking point and two-dimensional position information of a point corresponding to said staking point on said schematic image; and an image processor that superimposes a symbol for is indicating the position of said staking point on said schematic image in accordance with said correspondence.