The invention relates to a laser cladding-spinning method for making a low-crack-rate coating on the surface of a shaft part, which comprises the following technical processes: placing laser cladding equipment near spinning equipment; bonding to project the light spot which is generated by the laser cladding equipment under a condition of optimal parameters onto a local area, which is to be spun by the rotating wheel of the spinning equipment, of the surface of the shaft part constantly; cladding a coating material on the surface of the shaft part by laser and by a pre-coating process or powder feeding process; and after cladding, spinning the hot cladding immediately with the rotation of the shaft part and the feeding of the rotating wheel so as to make the cladding produce plastic deformation under the action of a spinning force. In the invention, the cladding produces plastic deformation under the action of the spinning force to press and join micro cracks, eliminate the residual stress of the cladding and pores, and thus, the integrity, compactness, substrate bonding strength, cohesion strength and surface quality of the cladding are improved obviously.