PROBLEM TO BE SOLVED: To perform appropriate measurement without a wearer of an eye tracking device unconsciously turning eyes to a marker, and to accurately and automatically measure the position of a gazing point in an original form image of a target object even if the target object is deformed.SOLUTION: In the gazing point measuring device, in a corresponding point retrieval process 31, a real space characteristic point 51a and an original form characteristic point 51b are extracted, and a set of a real space corresponding point 42a and an original form corresponding point 42b are retrieved. In a planar projective transformation matrix computing process 33, a planar projective transformation matrix 44 for planar-projective-transforming coordinates of a visual field image 4 to coordinates of the original form image 3 is output. In a curved face mesh generating process 35, a planar mesh 45 is generated by the planar projective transformation of an original form mesh 43 based on the planar projective transformation matrix 44, and a planar corresponding point 42c is computed by the planar projective transformation of the rear space corresponding point 42a, and a curved face mesh 46 is generated by deforming the planar mesh 45 based on the displacement 54 between the planar corresponding point 42c and the real space corresponding point 42a.
