The invention discloses a traditional Chinese medicinal composition for treating pertussis. The traditional Chinese medicinal composition comprises, by weight, 5-7 parts of radish seed, 2-4 parts of Poria cocos, 1-3 parts of Poria cum Ligno Hospite, 8-10 parts of Radix Platycodonis, 5-7 parts of almond, 2-4 parts of honey-fried licorice root, 8-10 parts of Arisaema Cum Bile, 2-4 parts of root of Tomentoseflower Larkspour, 1-3 parts of Common Coltsfoot Flower, 6-8 parts of tangerine pith, 2-4 parts of Hedyotis diffusa, 6-8 parts of Sanicula lamelligera Hance, 2-4 parts of honeycomb, 1-3 parts of rhizome of Black Bamboo, 2-4 parts of Spora Lygodii, 2-4 parts of common nandina fruit, 6-8 parts of Cogongrass rhizome, 2-4 parts of White Mulberry Root-bark, 1-3 parts of Acorus gramineus, 1-2 pars of Acer buergerianum, 1-2 parts of Artemisia japonica, 1-2 parts of Anisodus mairei, 3-5 parts of Ainsliaea fragrans Champ. and 10-12 parts of amaranth stem. The traditional Chinese medicinal composition has the efficacies of sweating, cold dispelling, lung diffusing, panting calming, lung moistening, cough relieving, middle energizer warming, yang reviving, lactation promoting, dampness eliminating and phlegm dispersing, and has the advantages of good pertussis treatment effect, fast effectiveness, and no toxic side effects.