Casein phospho peptide briefly as CPP, it is a kind of new functional stabilizer extracted from milk case in protein by our company with the high biological technology. CPP is a kind of polypeptide with phosphate-groups. It can form soluble compound combined with metal ions, especially with calcium ions, and this formation. It can prevent calcium from forming sediment under the neutral or weak alkalinity condition in small intestine ,on the other hand, it can be absorbed by small intestine cells without precipitation of vitamin D. At present, CPP is the most effective factor to accelerate calcium absorption. Test shows that a CPP molecule can promote 1.43 calcium molecules to be absorbed. CPP is not only the vector of calcium, but also is the vector of iron, manganese, zinc and selenium. CPP is peptide extracted from natural protein, possessing characteristics such as less reaction, safety and good reliability, that is why it is considered in common as functional additives with wider usage. It will do much good for the children and youth's health, while enjoying high effectiveness on old people's heath care.