Three different_structured Fe nanowires, including preferred orientations of [110],[200] and morphology nanowires,were electrodeposited by a method of changing the pH value of the aqueous bath.And the [200]_preferred Fe nanowire was reported for the first time so far as we know.Magnetic properties of the three kinds of nanowires were measured by superconducting quantum interference devics(SQ UID) magnetometer.Compared with the [110] preferred nanowire array,the [200] preferred one has a high aspect ratio with improved anisotropy and coercivity.It is first time that the magnetization of Fe nanowire arrays with the crystal anis otropy and shape anisotropy in the same direction has been reported.