In this paper, a new and fast extraction algorithm for a laser strip center with the ability to effectively resist noise or redundant points is presented. The proposed method combines the traditional barycenter algorithm and the contour tracking algorithm. Based on the distribution characteristics of laser strip in the image, the threshold contour tracking algorithm is used to avoid scanning the area that does not contain a laser fringe in the image, thereby improving the extraction speed. Therefore, the center of the laser strip can be extracted without scanning the whole image. The proposed algorithm provides advantages such as low complexity, simple calculation, and less running time. Experimental results show that the proposed algorithm can achieve fast extraction of the laser strip center. Furthermore, it is nearly 70.37 times faster than the Steger algorithm and 4.48 times faster than the traditional barycenter algorithm. Moreover, the proposed algorithm achieves excellent anti-noise effect subsequent to adding noise (redundancy) points to the light bar image.