Abstract: Using water distilled the Dark Brown Pigment from Walnut epicarp in the sample of differend sampling point and same means dry ．We have tested the stability of the dark brown pigment . The results showed that the pigment can be better solved by H2O. In the same time, it has good abilities to oxidation and good stabities to hot and light . Salt, C12H22O11 and metal ions have little effects to it . Using water distilled the Dark Brown Pigment has many advantages, such as simple technologg , low pollution ．