The paper describes the progress and the applied prospects of soft X-ray multilayer mirror.The period and nonperiod multilayer System are designed.In the wavelength 171Å 21 layersperiod and 17 layers nonperiod Mo/Si mirrors are fabricated by DC MCS technique.In the wavelength 256Å 21 layers period Mo/Si mirror is also fabricated by EBV technique.X-ray little angle diffraction experiment
AES analysis and reflectivity measurement are done to samples.Discussion of measurement results is given.