Abstract: The resettlement compensation problem of rural migrants caused by the development and construction of engineering projects has become an important risk factor affecting social stability. A questionnaire survey was conducted taking the immigration of the Three Gorges Project in Fuling district of Chongqing as the research object. Selecting variables from the three aspects of rural immigrants' demand level, individual cognition and village characteristics, the structural equation model was used to analyze the behavior logic of the rural public participation during the post-migration support program. The results show that the rural migrants have more serious living poverty after the completion of the construction project, which is characterized by high poverty rate, low employment rate and low income. The fundamental reason for the slight weakness of the post-migration support program is that it is difficult to grasp the key needs of rural migrants, and the participation of rural migrants is relatively low. The participation behavior of rural immigrants in the post-migration support program is significantly affected by their behavioral intentions, which is affected by the comprehensive level of project immigration needs, personal cognition and village characteristics. Catering to the needs of rural immigrants, building an effective participation platform and policy guarantees are important measures to promote the effective participation of engineering immigrants.

Key words: rural immigrant, post-migration support program, behavioral intention, structural equation modeling （SEM）