The dynamic aberration of human eye accommodation in near vision is researched. The Hartmann-Shack wave-front sensor-based human eye dynamic aberration measuring instrument that can induce human eye diopter accommodation was established. The vision information of human eye in accommodation is obtained by moving target in front of eye to induce diopter accommodation and then recording the aberration with Hartmann-Shack wave-front sensor. The principle and the method of measuring aberrations of human eye and inducing accommodation are given. Compared with interferometer measuring the same aberration plate, the aberrometer has a measurement root mean square (RMS) of λ/50, and repeatability of RMS of λ/500, indicating a good precision and repeatability. Nineteen eyes of 10 volunteers are measured. Besides the largest inducing accommodation amplitude of 8.6D, 84% people have induced accommodation with amplitudes between 3D～8D.