Abstract: Public corpus is often used to do research in order to compare the performance of different method.But the public corpus is only for experimentation，so its size is usually small and the field of public corpus is local.So the veracity of chunking descends on real different field corpus.Several experiments are designed to study the influence to chunking with different result of part of speech，different field corpus and different repository in this paper.The feasibility of distributed multi-agent English chunking strategy used to real application system is reviewed.Through testing on the real public corpus，F score of English chunking using multi-agent model achieves to 92%，which almost satisfies the practical need.