Analyzing the advantage of combination of MAS(multi-agent system) and heterogeneity databases, an new architecture of distributed database based on multi-agent technology is presented. We designed work flow of MAS in the distributed database, constructed a number of Diagents and implemented network communication module based on MAS on CIagent platform to solve communication problem of Diagents. With MAS applied to distributed database, our experimental results show that the new architecture of distributed database based MAS on Ciagent platform is very efficient. At the same time, a novel scheme on MAS is provided for enterprise information integration.