Laser has the advantages of high directivity, high monochromaticity, high coherence and energy density which cannot be achieved by ordinary light source, laser technology has been widely used in measurement, analysis, processing and manufacturing, medical and other fields. In recent years, due to the unique advantages of laser technology such as high precision, non-contact and good stability, it has become a research hotspot in the field of precision measurement and manufacturing. This paper reviews the application status of laser technology in precision measurement and machining, and classifies and summarizes the measurement principles and application scenarios. Finally, the development trend of laser technology in precision measurement and machining field is predicted on the basis of the present development status, which provides reference for the application of laser technology in the field of precision measurement and precision machining.