An intelligent Internet high-definition scanner with laser correction, comprising: a scanning area for placing a book to be scanned; a calibration laser emission unit located above the scanning area, an image collection unit and an image processing unit; wherein the calibration laser emission unit emits a laser beam to the book unfolded and placed on the scanning area during working, and forms a laser line on a surface of the opened page; the image collection unit collects a planar image of a bent page with the laser line by establishing a three-dimensional coordinate system including a plane of the scanning area; according to coordinates of pixel points of the laser line and an intersection angle between the laser beam and the plane of the scanning area, height coordinates of each pixel point on the laser line in the planar image in the three-dimensional coordinate system is obtained through calculation of tangent function, a 3D curve of the laser line in the three-dimensional coordinate system is restored, and a real 3D curved surface of the page in the three-dimensional coordinate system is constructed according to the 3D curve; and a correlation between points on the 3D curved surface and the pixel points in the planar image is obtained through calculation, pixel values of the points on the 3D curved surface are replaced by pixel values of corresponding pixel points in the planar image, and the 3D curved surface with pixel values replacing is straightened, to complete scanning the current page, wherein a side of a bottom of the plane of the scanning area is provided with a fixed mount vertical to the plane, and a laser emission device of the calibration laser emission unit and a camera of the image collection unit are respectively fixed in the fixed mount, and wherein the camera is located right above the geometric center of the plane of the scanning area, and an imaginary rectangular pyramid is formed by connecting the camera to angles of the plane of the scanning area. a scanning area for placing a book to be scanned; a calibration laser emission unit located above the scanning area, an image collection unit and an image processing unit; wherein the calibration laser emission unit emits a laser beam to the book unfolded and placed on the scanning area during working, and forms a laser line on a surface of the opened page; the image collection unit collects a planar image of a bent page with the laser line by establishing a three-dimensional coordinate system including a plane of the scanning area; according to coordinates of pixel points of the laser line and an intersection angle between the laser beam and the plane of the scanning area, height coordinates of each pixel point on the laser line in the planar image in the three-dimensional coordinate system is obtained through calculation of tangent function, a 3D curve of the laser line in the three-dimensional coordinate system is restored, and a real 3D curved surface of the page in the three-dimensional coordinate system is constructed according to the 3D curve; and a correlation between points on the 3D curved surface and the pixel points in the planar image is obtained through calculation, pixel values of the points on the 3D curved surface are replaced by pixel values of corresponding pixel points in the planar image, and the 3D curved surface with pixel values replacing is straightened, to complete scanning the current page, wherein a side of a bottom of the plane of the scanning area is provided with a fixed mount vertical to the plane, and a laser emission device of the calibration laser emission unit and a camera of the image collection unit are respectively fixed in the fixed mount, and wherein the camera is located right above the geometric center of the plane of the scanning area, and an imaginary rectangular pyramid is formed by connecting the camera to angles of the plane of the scanning area.