Abstract: The expiration date and tenderness of the collagen protein-contained food are the two main factors which will have effects on its sales and resut in the time-cost and energy consuming in its production process. To improve the quality of the collagen protein-contained food in these connections, a new kind of quality booster is introduced winch is safe, reliable, economic and convenient to use and has the food flavour and nutrient elements remained. This booster has practical value.