Due to the construction of national hydropower projects，a large number of rural migrants resettled often face livelihood recovery challenges due to insufficient land resources and hollowing out of industries in reservoir areas.“Digital business promoting agriculture” provides an opportunity for digitizing the livelihoods of resettled families.Starting from the classification and reconstruction process of resettler social networks，this study explores the interaction mechanism between networks and digital behavior mediated by trust in resettlement areas.Then，based on on-site survey data from resettlement villages in the Three Gorges Reservoir area，the social network structure and characteristic values of various types of resettlers were obtained by using the UCINET tool.Finally，the Quadratic Assignment Procedure method （QAP） is used to analyze the impact of heterogeneous networks on the income-boosting effects of digital livelihood patterns among migrants，as well as the differential mediating effect of special and general trust.The results show that digital livelihood model can effectively address the challenges in agricultural and non-agricultural livelihoods among migrants， with different types of social networks exerting varying degrees of support.Centralized or decentralized resettlement methods will affect the income levels of digital liveihood generated by various sub-networks， with trust playing a significant mediating role and general trust relationships dominating. The choice of relocation sites simultaneously influences the reconstruction of social networks and the development of digital livelihoods， leading to changes in the strength of the trust mediating influence.Therefore，it is suggested that according to the regional conditions，supporting resource allocation，resettlement methods，resettlement subjects and other characteristics，digitizing resettler households’ livelihoods can be achieved through the deep integration of reconand promoting the sustainable development of resettlers livelihoods.