The invention is applicable to the technical field of curved-surface part measurement, and provides a reflective curved-surface part measuring method based on a combination of light vision and conoscopic polarization. The reflective curved-surface part measuring method comprises the steps of: A, carrying out modeling; b, performing modeling analysis; c, respectively measuring a polyhedral standardblock by using a surface structured light vision sensor and a conoscopic polarization holographic sensor, so as to determine corresponding point sets of point cloud data P1 and P2; d, geometrically processing the point cloud data obtained in the step C by using a point cloud processing assembly, performing influence overlapping comparison on three-dimensional modeling in the steps A, B and C, andconducting confirmation comparison on modeling data in the steps by adopting a coordinate system rotation method; and measuring a complex curved-surface part by using a method of combining surface structured light with conoscopic polarization holography, synthesizing the obtained three-dimensional point cloud data under the same coordinate, and finally acquiring complete three-dimensional point cloud data of the part. Therefore, the reflective curved-surface part measuring method can realize effective measurement of the reflective curved-surface part, and can improve the measurement efficiency and measurement precision.