In recent years, supersonic flow related to supersonic aerocraft has received great attention, and the visualization research on supersonic and hypersonic flow field structure and the accurate measurement of flow field parameters have become the research focus. Compared with traditional measurement technology, optical measurement technology has the advantages of non- interference, high resolution, high precision and visualization, and is widely applied in supersonic flow field measurement. The principles and developments of the optical measurement methods used in supersonic flow field are introduced in detail, which provide references for the development of supersonic flow measurement technology