Abstract: Ethnic tourism has become a critical choice for people's journey in modern society, and the contradictions and disputes caused by the different appeals of various subjects in ethnic tourism communities have been a critical factor restricting the sustainable development of tourism. The complexity of the symbiotic relationship and way of interaction among the government, enterprises, residents and tourists deserves further analysis. For this reason,directed by the Symbiosis Theory and based on the data of field investigation, this paper analyzes the symbiotic relationship and mode of tourism multi-subjects through the comprehensive measurement of relevant symbiotic indicators. The founding reveals that: 1) Among local governments, residents, enterprises and tourists, there exist positive symbiotic relationships and different mutual influences. 2) The symbiotic relationship between different subjects is relatively close, the correlation between government and tourists is the highest, and that between government and residents is the lowest. 3) The positive reciprocal symbiotic model(REGT) is formed among the main agents of the local tourism community, specifically, residents leading, enterprises facilitating, governments assisting and tourists participating. In a sense, this research expands the application of Symbiosis Theory and may have certain reference significance for the development of other tourism communities.