The invention discloses anti-static down feather composite fibers for down and feather filled products and relates to the technical field of down feather processing. A preparation method comprises the following steps: (1) pre-treating feather; (2) preparing feather powder; (3) preparing threadlike down feather fibers; (4) modifying the down feather fibers; and (5) forming the down feather compound fibers. On the basis of original light and soft properties and heat insulating ability of the down feather fibers, the down feather composite fibers which are excellent in anti-static property are prepared. Static electricity caused by friction of common down feather fibers and down feather fibers as well as the down feather fibers and a shell fabric of a product is avoided, the using comfort of the down feather product filled by the down feather composite fibers is enhanced, and discomfort caused by static electricity on a human body is reduced.