Tissue damage induces cells into reprogramming-like cellular state,which contributes to tissue regeneration.However,whether factors promoting the cell reprogramming favor tissue regeneration remains elusive.Here we identified combination of small chemical compounds including drug cocktails robustly promoting in vitro cell reprogramming.We then administrated the drug cocktails to mice with acute liver injuries induced by partial hepatectomy or toxic treatment.Our results demonstrated that the drug cocktails which promoted cell reprogramming in vitro improved liver regeneration and hepatic function in vivo after acute injuries.The underlying mechanism could be that expression of pluripotent genes activated after injury is further upregulated by drug cocktails.Thus our study offers proof-of-concept evidence that cocktail of clinical compounds improving cell reprogramming favors tissue recovery after acute damages,which is an attractive strategy for regenerative purpose.