The purpose of this study is to investigate the ancient books comprehensively to know the forbidden Chinese medicines during gestation, and to understand the Chinese medicines which have be taken carefully during gestation through recent researches of Chinese medicine. In addition, some disputable medicines specified in ”Jin Gui, Syndrome and Therapy of Gestation” and the spirit of ”curing without injury” specified in ”Nei Jing” are analyzed and discussed further. It is hoped to get the curative effect without injuring the fetus and parent pregnant woman clinically through suitable dosage, formula and preparation of Chinese medicine.