This paper constructs the interactive mechanism system dynamics model of manufacturing industry and logistic industry according to the relevant theories and actual situation of China, including the variables such as valueadded, outsourcing rate of the manufacturing industry and logistic industry as well as the proportion of China’s logistic industry to GDP. This relationship is simulated by Vensim PLE software after robustness and consistency checking. Results show that logistics informatization has significant influence on the efficiency of logistics and manufacturing output valueadded，but logistics output valueadded is more sensitive to the logistics outsourcing rate of the manufacturing industry. Meanwhile, the governmental financial support to logistic industry informatization can make the effect of both the outsource of the manufacturing industry and the informatization of the logistic industry more effective and make all parties of the system obtain a better development.