To observe the impact of Erbu Zhuyu Decoction on endometrial receptivity.Methods:42 patients, who with kidney deficiency, had failed in in vitro fertilization embryo transfer (IVF ET) due to lower endometrial receptivity, then see doctor Xiao Chengcong from May 2010 to May 2011, took Erbu Zhuyu Decotion for 3 months.We calculated pregnancy rates during six months follow ups, observed changes in clinical syndrome score, endometrial thickness, estrogen and progesterone levels.Results:During six months follow ups, pregnancy rate was 57.1%; clinical symptoms were significantly relieved (P<0.05); endometrial thickness on HCG injection was significantly greater than before treatment (P<0.05), and estrogen levels were significantly higher than before treatment (P<0.05); Progesterone levels before and after treatment was not significantly changed (P> 0.05).Conclusion:Erbu Zhuyu Decoction can significantly improve endometrial receptivity.