Abstract: Research work in studying cooperation behavior mechanism of autonomous agents will help and support to establish more complex DAI system.The authors try to balance the selections of rational autonomous agents to different working divisions by using cooperation mechanism,in order to allocate computing resource of the system equitable between tasks.Important differences of the research work presented from the former research work lie in supposing that cooperation is generated by agents’ interference,and the effect of environment on agents’ behaviors is taken into full consideration.To some extent,the distributed transportation scheduling experimental system can be regarded as the development of the Contract Net Protocol.The openness of the system,the autonomy of agents, and the ideal outcome of the experiment are all remarkable.