Lung nodule belongs to the category of “cough and lung accumulation” in Chinese medicine. Platycodon grandiflorum has the efficacy of promoting the lung, inducing phlegm, expelling phlegm and draining pus, and according to the theory of traditional Chinese medicine, it has a certain therapeutic effect on lung nodules caused by qi and phlegm obstruction. Platycodon grandiflorum is the dried root of Platycodon grandiflorum, which is bitter and pungent in nature, and belongs to the lung meridian, with the efficacy of promoting the lung, inducing the pharynx, expelling phlegm and discharging pus, and it can be used in the treatment of coughing and phlegm, chest tightness, sore throat, mute, and spitting out pus from the lung carbuncle, and other diseases. In the use of attention should be paid to the deficiency of yin and long cough, gas reversal and hemoptysis should be avoided. In addition, for the lung nodule Chinese medicine treatment is mostly based on resolving phlegm and dispersing knots, activating blood and regulating qi, therefore, it is recommended that patients with lung nodules go to regular hospitals in a timely manner, under the guidance of a professional physician to identify the treatment.