Provided are a traditional Chinese medicine composition for treating postpartum constipation and application thereof. The traditional Chinese medicine composition is prepared from, by weight, 3-15 parts of licorice roots, 10-30 parts of donkey-hide glue, 20-50 parts of aloes, 12-40 parts of fructus lycii, 10-20 parts of herba portulacae, 10-30 parts of fructus cannabis, 10-25 parts of semen astragali complanati, 8-25 parts of cortex eucommiae, 5-15 parts of achyranthes bidentata, 7-26 parts of rhizoma anemarrhenae, 10-30 parts of caulis polygoni multiflori, 10-40 parts of rhodiola rosea, 20-50 parts of honey, 6-20 parts of poria cocos, 8-30 parts of cistanche salsa, 10-30 parts of cortex magnoliae officinalis, 10-20 parts of yams and 5-15 parts of motherwort herbs. The traditional Chinese medicine composition starts from incidence causes which produce constipation and is developed according to special groups of people, prenatal constipation and postpartum constipation are solved, Yin and Yang must be regulated, the liver and the kidney are nourished, Yin is nourished, the blood is supplemented, the lung is moistened, the secretion of saliva or body fluid is promoted, the brain is strengthened, nerves are calmed, the spleen is invigorated, Qi is replenished, bowels are loosened, the constipation is relieved, and taking traditional Chinese medicine composition is an effective way for treating the postpartum constipation. The traditional Chinese medicine composition can strengthen physical enginery and rapidly enhance improvement of postpartum immunity of pregnant women, drug dependence brought by only using western medicine can be avoided, and the effect of the traditional Chinese medicine composition is superior to that of traditional food therapy or only using western medicine.