According to the operation mechanism of the logistics field, we combine the factors of the North-to-South coal diversion, such as production place, ports, railways and water transports, with the logistics sources, sinks, corridors and nodes. On the basis of the logistics field operation model, we build the North-to-South coal diversion transport network in China and optimize the existing transport network, so as to realize the maximum benefits. Moreover, we analyze the actual South-to-North coal diversion cases to verify the applicability of the model and analyze the existing water network of the coal in China.