Abstract: In order to realize the dynamic load balancing of the distributed system‚a new dynamic load balancing algorithm was proposed based on Mult-i agent．In this algorithm‚the receiver-initiated strategy is adopted and the tasks are dynamically migrated by the mobile Agent in the running process of the system‚according to the current status of load on each host．The load status of hosts was also investigated‚with a status index of 〈 LC‚LM〉 being proposed． This index shows the differential characteristics of each computer in the distributed measurement and control system． The function‚structure and communication of Agent were then introduced in detail and an application was presented to demonstrate the communication of Agent and the creation of the mobile Agent．The algorithm was finally realized in the distributed measurement and the control system．The experimental results show that the algorithm can decrease the network transmission‚save time‚improve the system efficiency and attain dynamic load balancing． 

Key words: distributed system, dynamic load, load balancing, Mult-i agent, mobile Agent