The purpose of this study was to gain knowledge of Peruvian feather-work, its development, its purposes, and the techniques involved in the production of this material. Through research and through examination of seventy-seven pieces of feather-work at seven museums, theories propounded in research were verified. In addition, discoveries were made. An additional method of stringing the feathers was discovered. A brief history of the people shows that as they developed in agriculture, they had a parallel development in cultural accomplishments. It can be assumed that the agricultural development led to more time for cultural achievements. It has become known that their accomplishments in the area of textiles were outstanding. Among their textiles, feather-work was particularly unique.