We develops various vacuums freezing dry equipments which can meet different industry requirement and different kind of freeze-drying foods. Vacuum freezing dry technology is used very widely the products which are hydrous, innocuous and non- corrosive can all be used in this kind technology to make freeze-dried products, in order to be storage for a long time. Vacuum freezing dry technology is applied to food industry to process freeze-drying dood (FD Food).Almost all of the agricultural and sideline products such as meat, poultry, eggs, aquatic products, vegetables, fruits, etc.Can be processed to freeze-drying food.The technology is also used in pharmaceutical industry, medical treatment industry, health care products industry, etc. Vacuum freezing dry technology is the most advanced processing technology among food storage and processing methods, it can retain the original food color, smell, taste, shape and nutritional content, water recovery effect is excellent