In the present work, based on the stable phase of α-FeOOH and β-FeOOH easily formed in ferric solutions of Fe(NO3)3 and FeCl3 at the appropriate pH values, respectively, the phase and crystallizability, morphologies and sizes for the particles of FeOOH minerals prepared under the conditions of heating at 40 and 70 ℃, and magnetic stirring at 25 ℃ were identified and examined by X-ray diffraction (XRD), transmission/scanning electron microscopy (TEM/SEM) and laser scattering particle analyzer. Meanwhile the surface chemistry properties were also detected and analyzed by Fourier transform infrared spectrometer (FTIR). Investigation results showed that the prepared minerals Gth-T70 (α-FeOOH), Aka-T40 and Aka-T70 (β-FeOOH) have good properties of nanocrystallity, homogeneous particles and higher specific surface areas, which induced that the above α, β-FeOOH are potentially excellent adsorbent materials for removal of some contaminants in circumstances.