In recent years，selenium-rich agricultural products，including selenium-rich tea，have become more and more popular in the market. How to find a more suitable producing area for the development of selenium-rich tea in the vast selenium-rich soil area，there is still a lack of a set of evaluation methods for screening of producing areas. Therefore，it is of great significance to construct the evaluation method of selenium-enriched tea producing area selection for making full use of selenium-enriched soil resources and promoting selenium-enriched tea industry. In this study，four parameters，including soil pH，organic matter，selenium content in soil and selenium enrichment coefficient in tea，were selected as the evaluation indexes，which were based on a large number of literatures and expert opinions. Fuzzy mathematical model was used to preliminarily establish the evaluation method system of selenium-rich tea origin screening，and Lincang city and Pu’er city，the main tea producing areas in Yunnan province，were applied as examples. The results showed that:(1)The soil pH of tea gardens ranged from 3.82 to 8.46. The proportion of soil pH of tea gardens reached the standard of Ⅰ grade was 30.00%-87.50% in Lincang city and 17.64%-80.00% in Pu’er city，respectively. The soil pH was generally suitable for the growth of tea trees.(2)The content of soil organic matter in tea garden ranged from 2.15 to 91.8 g·kg-1. And the soil organic matter content was relatively rich on the whole. Except for Jingdong county，Zhenyuan county，Simao district，Ning’er county and Jinggu county，the soil organic matter content in other counties reached the standard of Ⅰgrade. (3)The soil selenium content of tea gardens in Lincang city ranged from 0.05 to 1.20 mg·kg-1. Except for Yunxian county，Fengqing county and Shuangjiang county，the average soil selenium content of tea gardens reached the requirement of soil selenium content for the most suitable tea gardens. However，the selenium content of tea garden soil in Pu’er city ranged from 0.02 to 1.24 mg·kg-1. Only the average selenium content of tea garden soil in Lancang county，Menglian county and Ximeng county in Pu’er city reached the tea garden soil Ⅰgrade standard. The selenium enrichment coefficient of tea leaves ranged from 0.026 to 17.500，and the selenium enrichment coefficient of tea leaves in the study area varied greatly. (4)From the perspective of spatial distribution，the suitability of the western region was generally higher than that of the eastern region. The suitable areas are mainly distributed in the western region，and a small amount of suitable areas are also distributed in the central northern and southern regions，while the unsuitable and less suitable areas are mainly distributed in the eastern and northeastern regions，because the soil pH is alkaline，the soil organic matter and the selenium content are low in the eastern and northeastern regions，which cannot meet the needs of selenium-enriched tea planting. (5)The verification results showed that the corresponding relationship between the suitability evaluation results of producing area and the proportion of tea reaching the standard of selenium-rich tea was basically consistent，which indicated that the selection and evaluation method of selenium-rich tea producing area was feasible. This study can provide a new way for the rational development and utilization of selenium-rich soil resources and the development of selenium-rich tea.