The magnetic alloys of Cu-Fe (Cu 50 Fe 50 , Cu 80 Fe 20 and Cu 90 Fe 10 ) were prepared by a mechanical alloying method and their structural and magnetic behaviors were examined by X-ray diffraction and Mossbauer spectra. The magnetization curves did not distinctly show the saturation at 70 kOe for the concentrated alloys of Cu 80 Fe 20 and Cu 90 Fe 10 . The Mossbauer spectrum of Cu 80 Fe 20 at room temperature shows one Lorentzian line of the paramagnetic phase, whereas the Mossbauer spectrum of Cu 90 Fe 10 consists of a sextet Lorentzian line at room temperature and a centered doublet line. The Mossbauer spectra of Cu 90 Fe 10 measured in the temperature ranges from 13 to 295 K, implies that Cu 90 Fe 10 consists of two magnetic phases. One superimposed sextet corresponds to the ferromagnetic iron in Cu matrix and the other one indicates the superparamagnetic iron rich phase.