Small loan project，as a new thinking for reemployment engineering，have alleviated the reemployment problem for the poor citizens in cities to some extent. But in the traditional opinion，under the realistic condition that this policy cannot be implemented in a large scale，this poverty alleviation ability is utterly inadequate to the huge poor population in cities and the promotion of this project is complained. This research，however，shows that the implementation of the small loan project for the laid-off and unemployed personnel can bring about an attached welfare effect. It has the advantage that entrepreneurship of just one person can create scale employment and on-job training can realize the increase of human capital in a large scale. These welfare effects are not formed automatically but attributed to the process of the effective government management. Hence，we think that we should，when forming an anti-poverty theory with Chinese characteristics，set up the concept that entrepreneurship can bring about scale employment and promote scale employment through an effective government management to enrich the theory and practice of social construction.