One of factors causing decline of paleo fauna is related to the hunting activities and the use of tools by early hominin. This study aims to observe the relationships of tools and abundances of mammals in early hominin occupancy in Pawon cave for the period of 6000-9000 year ago (ka). The results show low abundances of medium to large mammals. While obsidian tools numbers were observed high. From 8 to 9 ka there were abrupt reductions and followed with the disappearance of medium-large sized mammals included Tragulidae and Bovidae in 6 ka. Simultaneously, uses of obsidian tools in 8-9 ka were common. The reconstructed paleo climate may contribute to the decline of paleo mammal abundances. The temperatures were increasing from 27 0C in 9 ka to 28 0C in 6 ka. Periods of 6-7 ka were indicated by declines of Bovidae and obsidian tools as well. Nonetheless in these periods, there were increase in numbers of pottery and Suidae remains indicated the transition from hunting-gatherer to sedentary prehistoric life