关键词: 移动Agent, 蚁群算法, 任务权重, 路径选择

Abstract: This paper proposes an improved ant colony optimization algorithm applied in Agent migration based on duty weight in view of the problem of mobile Agent in the migration.The method using the idea of weight task to update ant path information makes the agent with the larger weight task have right to update the information of this way，then enhances the ability of the overall search of the algorithm.The results indicate that，comparing to the existing path chosen ant algorithm of agent migration，the improved ant algorithm proposed by the paper can enhance the ability of the overall search and improve the operating efficiency of the multi-task-Agent system.

Key words: mobile agent, ant algorithms, task weight, chosen path