Developing the circular economy model in Vietnam today still faces several shortcomings. It has not attracted a significant number of farmers to participate, and participation is uneven across different localities and regions. This situation presents a challenge for researchers and policymakers to study and devise effective solutions. Based on survey data from 370 farmers in the Mekong Delta, Vietnam, and utilizing Partial Least Squares-Structural Equation Modeling (PLS-SEM) with Bootstrap analysis for reliable testing, this study identifies key factors influencing farmers’ intentions to engage in the circular economy model. These factors include “Attitude towards the circular economy” and “Subjective Norms”.