The global unconventional oil and gas field development is currently facing continued low-price challenges， therefore， well productivity and well construction efficiency improvement is becoming particularly important. There are two major developing trends in drilling： one is the lateral length is getting longer and longer to achieve higher reservoir contact volume and therefore increased well productivity； the other is the drilling efficiency continues to improve to achieve higher economic efficiency by reducing well construction time and costs. Accordingly， it poses great challenges to horizontal well drilling， especially the ultra-long horizontal wells. It is particularly important to develop a complete fast drilling technology system for effective ROP improvement and well construction costs reduction. In recent years， Chinese unconventional oil and gas fields had made major breakthroughs in fast-drilling technologies but lack of effectiveness and repeatability. The North America unconventional oil and gas development has long history， and its fast-drilling technologies are mature. Wells with lateral length of more than 3000m are very common and the drilling performance is clearly better than those similar wells in China. This paper focuses on the advanced drilling equipment， drilling design， downhole tools， drilling parameters and operational practices of North American ultra-long horizontal wells， supported with two case studies from the Permian Basin with actual drilling data. The purpose of this paper is to summarize the fast-drilling technologies in North America， discuss and share the application results for reference for the Chinese unconventional oil and gas fields development.