To find more efficient emergency materials distribution mode in anti-bioterrorism system, the traditional point to
point transport mode and hub-and-spoke distribution mode are analyzed and compared, and both of their own advantages are
pointed out. Then, the mix-collaborative distribution mode, which combines the two advantages of those two pure modes, is
proposed. Besides, a heuristic search algorithm for solving the mix-collaborative model is presented. According to the result
of numerical simulation, a much more efficient emergency relief network can be formed by the mix-collaborative distribution
mode. Thus, these works can give a certain guidelines for the actual emergency rescue work.