Abstract: From the perspective of aerosol optical properties,this paper reviews and summarizes the development of aerosol optical properties,analysis of key optical parameters,ground-based Lidar detection,satellite remote sensing products and other research progress,summarizes different means and methods for the study of aerosol optical properties,and discusses the scientific significance of the influence of aerosol key optical characteristic parameters on aerosol environmental effects.The important role of Lidar in the analysis of vertical variations of aerosol optical properties during pollution process is pointed out,and the important application of satellite remote sensing and reanalysis data in the study of spatial and temporal distribution of aerosol optical properties and its interannual and decadal variations are expounded.In the future,further research on aerosol optical property observations,model simulations,satellite remote sensing monitoring,pollution mechanism research,and boundary layer meteorology are discussed,which provide important scientific data support for environmental monitoring,air pollution control,and climate change research in different regions of China.