Major Function Oriented Zoning (MFOZ) is the blueprint for the future developmnt and protection pattern of China's territory, and has been raised to from major function zones planning to major function zoning strategy and major function zoning institution. From 2004 to 2014, the author organized a series of research projects to compose MFOZ for the country, studied basic theory of regional function and MFOZ technical process, and proposed that space controlling zones of national and provincial scales can be divided into four types: urbanized zones, foodstuff-security zones, ecological safety zones, cultural and natural heritage zones. On this basis, major function zones of county scale should be transferred to optimized, prioritized, restricted, and prohibited zones. In this paper, a regional function identification index system comprising nine quantitative indicators (including water resources, land resources, ecological importance, ecological fragility, environment capacity, disaster risk, economic development level, population concentration and transport superiority) and one qualitative indicator of strategic choice is developed. Based on the single index evaluation, comprehensive evaluation using regional function suitability evaluation index is conducted, aiming at testing several key parameters including lower limit of protection zones and upper limit of development zones at the provincial level. In addition, a planning-oriented zoning method of major function zones is also discussed, which has brought the first MFOZ planning in China. According to the MFOZ caliber, it is forecasted that national spatial development intensity will rise from 3.48% in 2010 to 3.91% in 2020. Furthermore, according to caliber of the provincial integrated MFOZ planning, the area of optimized, prioritized and restricted zones accounts for 1.48%, 13.60% and 84.92%, respectively, and that of urbanized, foodstuff-security and ecological safety zones accounts for 15.08%, 26.11% and 58.81%, respectively. In combination of analyses of development level, resources and environmental carrying status and quality of the people's livelihood, the main characteristics of MFOZ were identified. Through verification, MFOZ draft of national and provincial scales, which is interactively accomplished with "MFOZ Technical Process" put forward by the author, is mostly above 80% identical with what have been forecasted.