Abstract: Identification of the degree of infiltration of lung pure ground glass nodular lung adenocarcinoma has important guiding significance for clinical management and improving the prognosis of patients. Currently, a variety of diagnostic models have been developed for this purpose. Based on the relevant literature at home and abroad, this paper introduces the research status and value evaluation of HRCT-based diagnostic models in identifying the infiltration degree of pure ground glass nodular lung adenocarcinoma, and reviews its research progress and clinical application prospects.