The invention relates to a traditional Chinese medicine composition for treating functional constipation and application thereof. The traditional Chinese medicine composition is prepared from the following raw materials of radix paeoniae alba, bighead atractylodes rhizome, radix rehmanniae recen, bran-fried immaturus aurantii, ginger-fried magnolia officinalis and hemp kernel. The invention also provides the application of the traditional Chinese medicine in preparation of medicines for treating the functional constipation. The traditional Chinese medicine composition has the advantages that 1, the selected raw materials have moderate cold and warm properties, and wetness and dryness properties, the dredging function is integrated into the tonifying function, and the effects of invigorating the spleen and clearing heat, nourishing Yin and wetting dryness, and activating Qi circulation and activating bowels are realized; 2, the compounding meets the principle of 'monarch, ministerial, conductant and envoy', the number of medicine types is fewer, the treatment effect is high, any toxic or side effect is avoided, the cost is low, and the like; 3, the selected crude drugs and the proportional ratio are screened by test, so that the effect is obvious; 4, the symptom of functional constipation (intestine excess-heat syndrome), traditional Chinese medicine and life quality can be effectively improved, the application is safe in short term, and the adverse reaction is low.