1. An apparatus for evaluating the performance of speech recognition comprising: a speech database for storing audio signal files of N-number of test speech signals for evaluation; a driving unit for reproducing through a loud speaker the respective audio signal files of the test speech signals, the driving unit having the correct recognition results of the test speeches; a speech recognizer for executing a speech recognition of the reproduced audio signals in an actual environment where the speech recognizer is located to produce speech recognition results; and a performance evaluation module for evaluating the performance of the speech recognition by comparing the correct recognition results with the speech recognition results.