In order to treat infertility patients accepting in vitro fertilization embryo transfer （IVF-ET） technology, professor YOU Zhaoling adopts calming fetus ahead method for many years, and this method increases the success rate of IVF-ET effectively. From the aspects of modem medical mechanism （endometrial receptivity ）, etiology and pathogenesis of Chinese Medicine （deficiency spleen and kidney） and therapeutic principles of Chinese Medicine （nourishing spleen and kidney）, this paper analyzes the scien...
