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With the development of internet technologies, internet has been more complexly consisted of a large amount of Web documents, science technology documents, data-base and etc. Distributed retrieval system is more required to support effective retrieval and management about a large amount of Web documents, science technology documents and etc. Distributed retrieval system has to support for user to search quickly and exactly. A distributed retrieval system has to support for DB manager to manage easily. So we have developed the distributed retrieval system called dKRISTAL which finds indexing files and manages database system in real time. We have developed new dKRISTAL system which can support searching and managing database. We measured the integrated search speed of distributed retrieval system. Also this system effectively manages documents at realtime. This paper made an experiment using a large mount of science technology information system and Web documents using dKRISTAL. This paper analyzed the result of experiment.