Objective:To establish a remote sensing method for measuring the area of eight high-frequency traditional Chinese medicines used in the treatment of COVID-19.Methods:The Chinese medicinal materials(licorice,forsythia,honeysuckle,patchouli,agastache,ephedra,atractylodes atractylodes and bitter almond)that frequently appeared in the Chinese patent medicines and prescrip-tions issued by the National Health Commission and 26 provinces(autonomous regions and municipali-ties directly under the central government)for the prevention and treatment of COVID-19 were analyzed in this paper.Their botanical and biological characteristics were classified and analyzed,and the method of extracting planting area based on remote sensing data was discussed.Results:For the first time,we sucessfully established a methodology framework for estimating the cultivated areas of these Chinese medicinal materials with high frequency.Conclusion:It provided data support for estimating the stock of Chinese medicinal materials under public health emergencies,and had important guiding significance for the orderly production of Chinese medicinal materials.