The invention discloses a traditional Chinese medicinal infusion for treating toothaches. The traditional Chinese medicinal infusion is prepared through using 5g of Rhizoma Coptidis, 6g of Rhizoma Cimicifugae, 10g of Radix Scrophulariae, 10g of Cortex Moutan, 10g of Rhizoma Corydalis, 10g of dahurian angelica root, 15g of Weeping Forsythia, 15g of gypsum, 15g of unprepared rehmannia root, 15g of Rhizoma Anemarrhenae, 6g of raw licorice, 6g of wine processed Rheum officinale, 3g of Panax Notoginseng powder, 3g of dragon's blood and 15g of Medicinal Cyathula Root. The preparation method of the traditional Chinese medicinal infusion comprises the following steps: taking the above raw medicines, adding water, decocting twice, and filtering after the decoction; and mixing the obtained filtrates to obtain a mixed filtrate, concentrating the mixed filtrate to obtain a concentrate, adding ethanol to the ethanol content of 65%, uniformly stirring, allowing the obtained mixture to stand, filtering, recovering ethanol, concentrating to a thick paste, adding sucrose, uniformly mixing, granulating, and drying to obtain the traditional Chinese medicinal infusion. About 10g of the traditional Chinese medicinal infusion is added with boiled water, and is taken after a meal three times a day when the treatment is carried out, and the application amount of children is reduced. The traditional Chinese medicinal infusion for treating toothaches is mainly used for treating toothaches caused by various oral cavity inflammations, carious teeth and the like, and has the advantages of good treatment effect, fast effectiveness, difficult recurrence after curing, and the like.