A surveying instrument comprising: a survey system configured to survey an object under survey; an image sensing system, to be pointed in a direction toward said object under survey, including a first image sensing unit having an angle of view and a second image sensing unit having an angle of view wider than the angle of view of said first image sensing unit; a horizontal angle driver configured to rotate said survey system and said image sensing system around a vertical axis of said surveying instrument; a vertical angle driver configured to rotate said survey system and said image sensing system around a horizontal axis of said surveying instrument; a data storage part configured to store design data; an angle detecting part (31, 32) configured to detect an angle of a collimation direction of the image sensing system relative to a bearing, the image sensing system being pointed in the collimation direction when the image sensing system rotates about the vertical axis and/or horizontal axis by driving the horizontal angle driver and/or the vertical angle driver; and a control unit configured to cause an image, which is based on image data that said first image sensing unit or said second image sensing unit generates after imaging, a design data object for showing locations of that portion of said design data which is included in a range of said image, and coordinate measurement point objects (144, 145) for showing locations of coordinate measurement points of the object under survey, to be surveyed by said survey system, corresponding to that portion of said design data which is included in the range of said image, to appear on a representation device (18, 19) in response to said design data stored in said data storage part and said angle detected by said angle detecting part (31, 32), characterized in that said control unit causes an object (144a, 145) for showing deviations of the location of said object under survey, which location is given by surveying with said survey system, in vertical and horizontal directions from one of the location of one of coordinate measurement points, to be surveyed by said survey system, corresponding to that portion of said design data which is included in said image, and an object (144b, 145) for showing deviations of the location of the object under survey, which location is given by surveying with said survey system, in fore and aft directions from the location of the one of coordinate measurement points, to be surveyed by said survey system, corresponding to that portion of said design data which is included in said image, to appear, as said coordinate measurement point objects, on said representation device. a survey system configured to survey an object under survey; an image sensing system, to be pointed in a direction toward said object under survey, including a first image sensing unit having an angle of view and a second image sensing unit having an angle of view wider than the angle of view of said first image sensing unit; a horizontal angle driver configured to rotate said survey system and said image sensing system around a vertical axis of said surveying instrument; a vertical angle driver configured to rotate said survey system and said image sensing system around a horizontal axis of said surveying instrument; a data storage part configured to store design data; an angle detecting part (31, 32) configured to detect an angle of a collimation direction of the image sensing system relative to a bearing, the image sensing system being pointed in the collimation direction when the image sensing system rotates about the vertical axis and/or horizontal axis by driving the horizontal angle driver and/or the vertical angle driver; and a control unit configured to cause an image, which is based on image data that said first image sensing unit or said second image sensing unit generates after imaging, a design data object for showing locations of that portion of said design data which is included in a range of said image, and coordinate measurement point objects (144, 145) for showing locations of coordinate measurement points of the object under survey, to be surveyed by said survey system, corresponding to that portion of said design data which is included in the range of said image, to appear on a representation device (18, 19) in response to said design data stored in said data storage part and said angle detected by said angle detecting part (31, 32), characterized in that said control unit causes an object (144a, 145) for showing deviations of the location of said object under survey, which location is given by surveying with said survey system, in vertical and horizontal directions from one of the location of one of coordinate measurement points, to be surveyed by said survey system, corresponding to that portion of said design data which is included in said image, and an object (144b, 145) for showing deviations of the location of the object under survey, which location is given by surveying with said survey system, in fore and aft directions from the location of the one of coordinate measurement points, to be surveyed by said survey system, corresponding to that portion of said design data which is included in said image, to appear, as said coordinate measurement point objects, on said representation device.