Abstract: Based on the meteorological data and various geographical elements in Zizhong County and its surrounding areas, this paper analyzes the suitable meteorological conditions for the growth of Zizhong blood orange in each growth period and determines the climate suitability index. According to the principles and methods of refined agricultural climate regionalization and considering the geographical environment, climatic conditions and other factors, the climate suitability regionalization of Zizhong blood orange is carried out by fuzzy statistical method with the support of ArcGIS technology. The results show that: The low mountainous area at the edge of the dome landform is an unsuitable area, and the deep hills located in the periphery and north of the low mountainous area are generally suitable areas, while the central and southern areas , Yuxi Town and Guide Town are the most suitable areas.