How to realize the innovation of rural tourism ecosystem has always been a dual problem in both the theoretical research and practical exploration of the anti-poverty project in rural tourism. The theory of symbiosis has become one of the main approaches to solve the problem of rural poverty in China. However, the existing research on how the symbiosis theory is embedded into and how it affects the ecosystem innovation of rural tourism is still insufficient. Based on the analysis of the questionnaire on the innovation of rural tourism ecosystem, this paper describes the mechanism of embedding the symbiosis theory into the innovation of rural tourism ecosystem from the two symbiosis units of supply and demand, and answers the relevant issues of "how the symbiosis theory embeds into and affects the innovation of rural tourism ecosystem". 

This is a new perspective, an extension and improvement of symbiosis theory and ecosystem innovation mechanism. Establish logistic measurement model, set binary dummy variable, take the effect of policy implementation (PIE) as the explanatory variable, add area as the control variable, respectively from the supplier effect, the demander effect, the whole effect into the model, and finally form the model (1), model (2), model (3). Logistic regression analysis was carried out for all effective samples by stata14. 

And this paper explains the symbiosis embedding theory reveals the black box of supply and demand symbiosis embedding process of rural tourism ecosystem innovation, answers the complex embedding mechanism that supply and demand symbiosis and rural tourism ecosystem innovation are mutually promoting, and provides a structural theoretical hypothesis for related research topics. This study finds that the accurate supply of government, tourism enterprises, and non-governmental organizations and the accurate selection of rural poor population, service quality, safety and itinerary planning, cultural and lifestyle differences all have significant positive correlation to the innovation of rural tourism ecosystem. The time cost caused by traffic, information loss, degree of fraud and price fraud are negatively correlated to the innovation of rural tourism ecosystem. This is basically consistent with the current reality.

Based on the symbiotic perspectives of "supply needs refinement"and "demand needs support", the author proposes: (1) Strengthening the ecological foundation, innovate the ecological mechanism, and improve the symbiotic environment of the ecosystem.Establishing and improving the innovation management system of rural tourism ecosystem, relevant laws and regulations;Establish and improve the coordination and supervision mechanism of diversified subjects, and strengthen the coordination and supervision of diversified interest subjects. Carrying out the dynamic supervision process, establishing and improving the dynamic supervision mechanism. (2) optimizing ecological distribution, strengthen ecological cooperation, and to build a model of ecosystem symbiosis.The innovation of rural tourism ecosystem is implemented from project to community. Project "fine supply", tourism enterprise "fine supply", poor people"fine supply", poor community "fine supply". (3) Strategies such as highlighting ecological characteristics, integrating ecological resources, and improving ecological symbiosis elements are also raised to optimize the innovation mechanism of rural tourism ecosystem. Strengthen the innovation of transportation "supporting demand", infrastructure and supporting service facilities construction; implement flexible working system, implement holiday "supporting demand"; innovate the symbiosis mechanism of diversified capital sources "precise supply supporting demand".