To study the factors affecting people's participation in the development of agricultural value chains, the research team collected information from 230 samples in some northern mountainous provinces of Vietnam. The article uses the EFA model and Probit model to conduct the analysis. By using the EFA model and the Probit model to assess the factors affecting farmers' participation in the development of the value chain, our findings show factors: income, natural conditions, loan capital, market have a great impact on the level of people's participation. The article has suggested some solutions to improve people's participation in agricultural value chain development.