Pulmonary fibrosis belongs to the category of lung impotence in traditional Chinese medicine, generally astragalus plus angelica cannot treat lung impotence. Lung impotence can be analyzed and treated with formulas such as Maimendong Tang or Licorice and Dried Ginger Tang. Astragalus and Angelica sinensis are Chinese herbs, the former has the effect of inducing diuresis, tonifying qi and promoting yang, moving stagnation and paralysis (to make the paralyzed meridians smooth), and the latter has the effect of tonifying and activating blood, regulating menstruation and relieving pain. Lung impotence is a more serious condition, only with astragalus and angelica two medicine, the therapeutic effect is limited, so need a variety of Chinese medicine with treatment. Astragalus is contraindicated in cases of yin deficiency and hyperactivity of yang, as well as in cases of food stagnation (food that is indigestible and stagnates in the stomach). Angelica sinensis is contraindicated for people with dampness (too much dampness causing fullness and discomfort in the spleen and stomach) and loose stools. The adverse effects of the above drugs are not clear. Lung impotence can be divided into two types: deficiency heat and deficiency cold. Lung impotence with deficiency heat is characterized by coughing up sputum with blood, coughing without sound, thirst and dryness of the throat, which may be accompanied by hot flashes and so on, and can be treated with Maimendong Tang. Lung impotence deficiency cold manifested as coughing and spitting, no thirst, short breath is not enough to rest, dizziness, less food, etc., can be used licorice dry ginger soup treatment. Lung impotence patients need to go to the hospital in a timely manner, by professional doctors to identify the evidence of treatment, strictly comply with the doctor’s prescription medication, and follow up on time.