Abstract
The Punan people in Borneo island had traded forest products for the necessities of life withthe Dayak people, who traded them with the brokers. At present, the Kelay Punan people in East Kalimantan trade directly with the brokers and merchants, who control the trade of the forest productsfrom the region. They are degraded to debtors now and sti11 carrying out hunting and gathering to payback the debt. Besides, the introduction of swidden cultivation is one of the most important factors toaffect their life style. Their swidden system might not be so sustainable, since they were not traditionalswidden cultivators 1ike the Kenyah Dayak people.