Scientific recognition of regional carbon emissions characteristics is the foundation for carbon emission reduction research. Policies of the Major Function Oriented Zones (MFOZs) are related to carbon neutrality directly or indirectly. Analyzing the characteristics of regional carbon emissions in different MFOZs is conducive to formulating policies in line with the functions of each zone. This study calculates the carbon emissions and analyzes its characteristics of the MFOZs from 2010 to 2017 in Sichuan Province. The results show that:(1) Sichuan Province's county-level carbon emissions present an obvious spatial distribution. Most counties in the western Sichuan Province belong to low emissions type, while most counties in the eastern Sichuan Province belong to high emissions type. There is an obvious core-periphery structure of carbon emissions, and emissions follow a circling layer pattern spatially differentiated against the distances to the regional core. Carbon emissions gradually decrease outwards from the core of Chengdu Plain and the secondary core of Panzhihua City. (2) There are obvious differences among MFOZs carbon emissions. The urbanized zones are the main part of carbon emissions with huge emissions. Changes in carbon emissions in the urbanized areas directly lead to changes in overall carbon emissions. The carbon emissions of foodstuff-security zones and ecological safety zones are much lower than urbanized zones. Carbon emission intensity of ecological safety zones significantly higher than that of other two zones (P<0.05). Ecological safety zones require attention due to higher carbon emissions intensity. (3) The secondary industry plays an important role in carbon emissions in urbanized zones, foodstuff-security zones and ecological safety zones. The secondary industry is the main source of carbon emissions. The proportion of carbon emissions from the secondary industry in urbanized zones is the highest, while the proportion of residential carbon emissions in foodstuff-security zones and ecological safety zones is higher. (4) Based on the functional positioning of each zone, the carbon emissions reduction measures and policies of each zone should focus on their own carbon emission problems. Urbanized zones should accelerate upgrading the industrial structure and advocate a low-carbon life for citizens. The foodstuff-security zones and ecological safety zones should strictly limit the scale of industrial activities, especially high energy-intensive industries. Finally, decision maker should strengthen the inter-zone cooperation of the MFOZs, reduce carbon emission intensity and carbon emissions in a whole. Government should accelerate urbanization process, advocate people of two other zones migrating into urbanized zones. Urbanized zones should provide technical support for ecological safety zones to improve energy efficiency.