Manufacturing of East Sumba's hand woven is using natural dye from parts of plant. This research aims to analyze business characteristics, covering process, production cost and handcrafters' income, kinds of plants used as natural dye, handcrafters' problems and supports needed to develop the business. The research was conducted at three villages in February and June 2014 by using interview, dialogue and field observation method. The business is micro scale industry where labours are from family members. Production cost and selling price of the products vary among handcrafters. Average work volume of handcrafters was 7,91 of thread unit per year and generate income of Rp1.133.122,- per month. There are two plant species produce natural dye that are mainly used, i.e. Indigofera tinctoria L. and Morinda citrifolia L., collected from nature. Work productivity of handcrafters has not optimal yet and raw materials of natural dye are more difficult to be obtained. Products of Sumba hand woven still use traditional motives and color, so that market segments are limited. To ensure the sustainability and development of the business, cultivation of plant species produce natural dye has to be done immediately. To expand market segment, it is important to introduce alternatives motive and color.