The relationship between circumferential offset and inclination angle is obtained via the establishment of the model of the circumferential thin-walled cylinder. By the optimization of circumferential offset angle and based on the laser cladding net shaping technique, a circumferential cantilever thin-walled cylinder with stable structure and relatively small errors in height and width is obtained. The results show that the requirements of cladding can be met when the offset angle is 0.75° and the inclination angle is 25.95° of cladding specimens. In addition, the circumferential deviation of 0.11 mm and Z-axis increment of 0.224 mm are the optimal process parameter set.