The invention discloses a traditional Chinese medicine composition for relaxing tendons and strengthening bones, and relates to the technical field of traditional Chinese medicines. The traditional Chinese medicine composition is prepared from the following traditional Chinese medicine components of processed semen strychni, processed radix aconiti, radix cyathulae, flos carthami, herba ephedrae, herba asari, caulis spatholobi, frankincense, myrrh, tripterygium wilfordii, caulis sinomenii and ground beeltle. The traditional Chinese medicine composition has the effects of dispelling wind and eliminating dampness, warming channels and expelling cold, promoting blood circulation to remove blood stasis, cooling blood and diminishing swelling, diminishing inflammation and relieving pain, stretching and strengthening tendons and setting bones, and tonifying liver and kidney, and can be used for treating rheumatism, rheumatoid arthritis and hyperosteogeny. Moreover, the traditional Chinese medicine composition has the advantages of being convenient to prepare and take, safe and free of side effects; meanwhile, tests in long-term diagnosis and treatment practice prove that the traditional Chinese medicine composition can relieve pains of patients to achieve the effects and functions of eradicating root causes of diseases and preventing relapse, has the function of repairing joints, and can reach a cure rate up to 100%.