A static parameter measuring equipment used for evaluating the sample of magneto-optical disk media is described in this paper. It is refitted from a metalloscope. The laser power, pulse width and extra magneto-field can be varied in a wide range. The readwrite characterization, sensitivity, uniformity and repeat erase-write number of the media can be measured with this instrument. The overall measuring process is controlled by an IBN-PC computer.The operation is very convenience. Experimental results show that it's an useful equipment for evaluating optical disk media and fabrication technology.