The main problems of the Karen in Phra Bat Huay Tom village are poverty and low household incomes. The Research Institute for Health Sciences has realized these problems so, they are finding out how to raise their household income levels effectively under their present custom. Then the institute uses hand weaving as a means to raise the villager’s household incomes by promoting them to produce a hand woven product called “Pa-Sin Pluag-Mai”. The institute also provides materials and markets the product. The purpose of this study is to determine the feasibility of the Karen hand woven activities, especially production, marketing and return. One of the findings of this study is that the Karen villagers received good returns during the period of promotion by the institute. After the institute ceased its support, the product demand was reduced while the supply was being expanded. Thus the price of the product decreased and the return per unit declined and led to a lower household income. It is also found that the reduction of demand is caused by a lack of organizations who conduct market management and promotion, low quality, poor designs irrelevant to the customers’ tastes as well as competition from other substitutes. The structure of the weaving industry at the village is not completely related to the principle of commercial production. Besides, the structure of price determination does not favor the villagers. The price is mainly determined by middlemen in towns with less bargaining power for the producers side. To solve these problems, private organizations who have skills and experience in production, marketing, and management of this type of product should be induced and encouraged to invest and produce the product by using labour from the villagers.