In this paper, disaster means damages caused by earthquakes and agricultural products mean vegetables, fruit, meat and fish. After the shocking earthquakes on 9/21/1999, the decision support system for emergency event catches the public's attention, tightly. In this paper, a logistics decision support system for agricultural products in urban area after disaster is established. By using disaster evaluation function, setting wholesale vegetable-fruit markets as the origins of distribution, and setting police stations as the destination of distribution, a decision support system is established by VBA software. Finally, we use Taichung City as an example to demonstrate how this logistic decision support system runs. We hope that people will pay more attention to the importance of software engineering by publishing this paper.