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The design of blind information retrieval system for UAV air communication database can effectively solve the problems of low recall rate, fine granularity, low retrieval accuracy and poor real-time performance in the traditional blind retrieval system. First give the overall architecture without man-machine air communication blind database information retrieval system design, based on the improved memory structures, to realize the optimization of system hardware; using Java language and embedded database design visual search page, select the information retrieval, the search function is realized by adding middleware, blind search function, complete the development of system software thus, design a UAV air communication database blind information retrieval system. Experimental results show that the system has high recall rate, fine granularity, high retrieval accuracy and good real-time performance.