A measuring system including a measuring instrument, a moving vehicle on which the measuring instrument is installed and a total station which is installed at a predetermined position, the measuring instrument comprising a spherical camera for acquiring image data over a total circumference, two laser scanners (6, 7) installed integrally with said spherical camera and for acquiring point cloud data of the surroundings, a prism provided integrally with said spherical camera, a synchronous control unit for synchronously controlling an image acquiring timing of said spherical camera and a point cloud data acquiring timing of said laser scanners (6, 7), a storage unit for recording said image data and said point cloud data which are associated with each other based on the acquiring time, and a control arithmetic unit, wherein said spherical camera is configured so as to acquire images over the total circumference (360°) and images in the upper direction, wherein said laser scanners (6, 7) have reference optical axes provided in a diagonally forward direction with respect to the advancing direction of the moving vehicle or in a direction so as to cross perpendicularly with respect to the advancing direction, and configured so as to scan a pulsed beam in the vertical direction and acquire point cloud data, characterized in that the measuring instrument comprises an absolute scale acquiring means for acquiring an absolute scale for obtaining an absolute position of when images are photographed by said spherical camera and wherein the position where the image is acquired is actually measured by the total station, and while tracking said prism by the total station, an absolute scale or an absolute position is acquired according to the results of the actual measurement, wherein said control arithmetic unit is configured so as to extract feature points with respect to two images photographed by said spherical camera (step 02), to perform relative orientation based on the feature points, to calculate a relative position of said spherical camera at each of the images (step 03), to actually measure a base line length based on a distance acquired according to the relative positions of said spherical camera when the two images are acquired and based on an image acquiring position measured by said total station, to convert a relative coordinate acquired by said relative orientation based on the actually measured base line length to absolute coordinates (step 04), to overlap said point group data on the images converted to absolute coordinates, and to calculate a 3D model (21a, 21b) based on said image data, said point cloud data, and said absolute position (step 06). the measuring instrument comprises an absolute scale acquiring means for acquiring an absolute scale for obtaining an absolute position of when images are photographed by said spherical camera and wherein the position where the image is acquired is actually measured by the total station, and while tracking said prism by the total station, an absolute scale or an absolute position is acquired according to the results of the actual measurement, wherein said control arithmetic unit is configured so as to extract feature points with respect to two images photographed by said spherical camera (step 02), to perform relative orientation based on the feature points, to calculate a relative position of said spherical camera at each of the images (step 03), to actually measure a base line length based on a distance acquired according to the relative positions of said spherical camera when the two images are acquired and based on an image acquiring position measured by said total station, to convert a relative coordinate acquired by said relative orientation based on the actually measured base line length to absolute coordinates (step 04), to overlap said point group data on the images converted to absolute coordinates, and to calculate a 3D model (21a, 21b) based on said image data, said point cloud data, and said absolute position (step 06).