The means of prescription is one of the most important contents in the studying of formulas of TCM. It is said that formulas embody principles, so we can deduce the means of prescription from some kind of formulas by drugs statistic analyzing based on massive samples of similar functional formulas. Seeing that blood deficiency is a common syndrome of many diseases, we could wield the principles of nourishing blood to guide clinical doctors wielding antiquity formulas and creating new formulas, under the gui...