The development of rural tourism can not only stimulate the growth of local economy, but also promote the effective implementation of China's rural revitalization strategy. Exploring the antecedent variables and forming mechanism of residents' support for tourism is an important factor to promote the sustainable development of tourism, which has attracted widespread attention from the academic community. Specifically, in the complex relationship between multi-stakeholders triggered by rural tourism development, residents' trust in government has played a pivotal role in ensuring the development of rural tourism, but existing studies about the influence of residents' trust in government on support for tourism lack in-depth discussion. Based on the social exchange theory, this paper takes community involvement and residents' perception of tourism impact as mediators and place attachment as the moderator. Selecting eight representative rural tourism destinations in Shandong Province as study sites, this study attempts to analyze the influencing mechanism of resident's trust in government on the support for tourism. Findings suggest that: (1) Trust in government has significant influence on community involvement, perceived benefits, support for tourism positively, and perceived costs negatively. (2) Community involvement and perceived benefits mediates partially the relationship between government trust and tourism development support. (3) Place attachment moderates the relationship between trust in government and community involvement positively. Compared with existing studies, this paper analyzes the formation mechanism of residents' support for tourism development in rural tourism destinations from the perspective of trust in government, and strengthens the role of community involvement and place attachment in the exploration of influencing mechanism. It provides a theoretical explanation and an empirical support for the deep understanding of the transmission mechanism of residents ' trust in government influencing their support for tourism and stimulating residents' support behavior for tourism development. This means that, in order to effectively improve residents' support for tourism, it is necessary to pay more attention to community residents' trust in government, enhance the interaction and communication between government and residents, encourage residents' involvement in tourism development, strengthen residents' sense of gain from rural tourism development, and cultivate residents' place attachment to their communities, so as to exert the positive role of rural tourism in promoting rural revitalization. [ABSTRACT FROM AUTHOR]