Abstract: Tibet Yulong copper deposit is a super porphyry copper in the world, also is part of the largest copper metallogenic belt proved so far in China. Currently, the research of this remarkable copper deposit is based on Two-dimensional. In view of this, this paper built the digital mineral deposit model of Tibet Yulong copper deposit, based on the geological features of this copper deposit, by the popular "Digital Mineral Deposit" method based on the software of Micromine, and made research on the 3D positioning and quantitative prediction of the resource. Studies have shown that the No.1 orebody of Tibet Yulong copper deposit is large and have most low-grade resource; the No.2 and No.5 orebody in the peripheral have small size and high-quality as a result of secondary oxidation, and they are rich with significant resource and they should have the priority to be mined. This study also demonstrates the obvious advantage of the study based on the digital mineral deposit model in the modern development of mineral resources, and this method has a higher value of the promotion and application.