In order to grain refinement and improve the quality of laser cladding coating, the Fe60-base composite coatings are fabricated by rotating magnetic field auxiliary laser cladding on Q235 steel surface. The microstructures and phase composition of the coating are analyzed by means of scanning electron microscopy (SEM), X-Ray diffraction (XRD) and energy dispersive spectrometer (EDS). The cross-section micro-hardness of the cladding layer is measured by Vickers hardness tester, and the abrasion performance of the cladding is characterized through the friction and wear experiments. The results show that the phase of the laser cladding composite coatings is mainly composed of γ-(Ni,Fe) solid solution、silicides and borides. The Cr5Si3 grain is refined and uniform distributed. The average micro-hardness of the composite coating is 685HV0.5, which is 1.1 times of that of the coating without rotating magnetic field; the weight loss of laser cladding modified layer is only about 0.66 times of that of the coating without rotating magnetic field. The wear behaviors of the laser cladding composite coatings are improved significantly.