Tendon injuries often need surgical treatment, which enables to repair the structure and stability of the tendons to a certain extent, whereas it is difficult to restore to their normal strength. The primary reason is that the natural healing ability of tendons is limited and the functions of the repaired tendons cannot be restored completely. As further researches on tendon healing are conducted, biological technology provides a novel orientation for tendon repair. One of the research hotspots of tendon repair currently is to facilitate tendon healing using biological auxiliaries, including tendon stem /progenitor cells(TSPCs) and growth factors. The authors review the research progress in mechanism of TSPCs and growth factors accelerating tendon healing in order to provide a reference for the biological treatment of tendon injuries.