Natto was developed in Japan about one thousand years ago. Owing to its special effective power with the rich nutrition and the top level quality, it has been taken as a health food and to prevent a lot of diseases, so far. It surely has been making a remarkable contribution to many people. The kind of natto with an alive bacillus in Taiwan now is only one, that is a traditional whole bean fermented mostly imported from Japan. Because of its unpleasant taste and dear price, it is still not popular yet. To meet the market requirements, it is necessary to produce a new kind of natto using bean flour fermented. It is easy to dissolve in water, and easy to mix with other materials, so very suitable to produce a lot of popular commodities. Such as: natto-sesame butter, natto-peanut butter, natto-fruit jam natto ice products (ice cream, ice candy) natto drinks and many other new health foods or cooking foods with natto. Through these foods, we will see that much more people will receive the beneficial natto power, before long. Natto has a strong sterilizing power. So this product is good for making medicines, too. Especially for skin diseases.