Abstract: Studying the location-routing problem (LRP) of relief system,based on emergency logistics,is very important for improving the ability to deal with the emergencies and the disasters. This paper divides the location-routing problem into two sub-problems:emergency facility location problem and emergency resource routing problem,and then establishes a LRP model with the goal of minimizing total costs,including fixed cost,transportation cost and disaster losses cost,using a two-stage heuristic algorithm to settle this model. At last,the paper selects the typhoon disaster as a typical example to analyze the model,and the results show that the LRP model is rational and feasible.

Key words: emergency logistics, relief system, LRP model, clustering method, ant colony algorithm