Return migration has been considered advantageous to the productivity of labor and the economic development of origin regions and countries. However, how and why return migrants make their investment decisions and how such processes contribute to poverty alleviation remains unclear. This study evaluated how migration experience influences rural families' choices for productive investments and the underlying mechanism of village poverty alleviation. The result indicates that, when all are given the same monetary budgets, return migrants are more inclined to invest in single agricultural‐related subjects rather than multiple subjects. A concentrated investment implies the investor's intention of expanding the production scale, which can further lead to a more organized, professional agricultural production that can be considered beneficial for community poverty alleviation. Moreover, different approaches of human capital accumulation led to varied capacity growth, among which migration experience effectively enhances the non‐cognitive ability of return migrants. Based on these findings, we suggest that more returnee‐preferential policies, supporting production and organization services should be established to promote agricultural entrepreneurship among the returning groups in poor rural areas.