1. A speech recognition system comprising: speech input means that inputs speech data; speech recognition means that receives the speech data input from said speech input means and performs speech recognition; recognition result evaluation means that derives a confidence of each portion of a recognition result obtained by the speech recognition by said speech recognition means and determines a priority of the recognition result based on the confidence which is obtained by comparison between portions of the recognition result, wherein said recognition result evaluation means determines the priority of the recognition result and/or a portion that forms the recognition result, obtained by the speech recognition by said speech recognition means; storage means that stores at least recognition result and the priority; display target range setting means that sets a range of the speech data to he output and a range of at least one of the recognition result and the portion of the recognition result; recognition result formatting means that performs formatting of output information on the recognition result according to the priority, wherein said recognition result formatting means determines display/non-display of the recognition result and/or the portion that forms the recognition result and outputs an output image, according to the priority, and wherein said recognition result formatting means performs determining display/non-display of the recognition result and/or the portion of the recognition result and creating the output image according to said priority and set range of said output; and output means that outputs the output information that has undergone formatting by said recognition result formatting means, wherein said output means includes screen displaying means for outputting the output image to a display device.