Abstract: For overcoming the limitation of existing measurements of magnetic field, those measurements which can only measure single point,according to the principle of Faraday magneto-optic rotation effect,we estimate the distribution of two-dimensional magnetic field. Using this measurement, the efficiency of the measuring magnetic field is improved, and the intuitionistic distribution is obtained. The experimental equipment is established. The magnetic field of permanent magnet is measured. The picture of polarized light via magnetic field is collected by CCD. By program processing to these pictures, the two dimensional distribution of the partial magnetic is obtained. The value of the two-dimensional distribution of the partial magnetic is obtained.

Key words: magnetic field, magneto-optic rotation effect, magneto-optical rotation image