An environmentally-friendly vehicle sound generator control apparatus comprising: a storage unit including a sound source storage unit for storing a plurality of frequency band-specific sample sound source data of a real single engine sound of an internal combustion engine vehicle, and a reference data storage unit for storing frequency band-specific reference sound level data, wherein the reference sound level data representing a frequency-band specific minimum sound level of sound being applied to a human's specific frequency-dependent weighting filter, the stored frequency band-specific reference sound level data being dependent on the specific frequency band and a driving speed of the environmentally-friendly vehicle; a sound output unit(70,70a) for outputting a pedestrian's vehicle recognition sound; a sound sensing unit arranged to be spaced apart from the sound output unit to sense the pedestrian's vehicle recognition sound output from the sound output unit; a sound source sound extraction unit for extracting and dividing the pedestrian's vehicle recognition sound for each of a plurality of frequency bands, wherein the plurality of frequency bands includes a low frequency band lower than 500 Hz, an intermediate frequency band ranging from 2,000 Hz to 5,000 Hz and a high frequency band higher than 5,000 Hz; a control unit for storing the frequency band-specific sound data of the pedestrian's vehicle recognition sound extracted and divided by the sound source sound extraction unit in a sound storage unit of the storage unit; and a sound playback unit including a sound comparison unit for comparing the frequency band-specific reference sound level data with the extracted plurality of frequency band-specific sound data for each frequency band in response to a comparison control signal of the control unit, a sound control unit for controlling the pitch and the volume of the plurality of frequency band-specific sample sound source data to form a plurality of frequency band-specific sample control sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data, and a sound mixing unit for mixing the plurality of frequency band-specific sample control sound source data corresponding to a frequency band specific control signal of a low frequency band, an intermediate frequency band or a high frequency band input according to a mixing control signal and transferring the mixed plurality of frequency band-specific sample control sound source data to the sound output unit so that the sound output unit can output the pedestrian's vehicle recognition sound. a storage unit including a sound source storage unit for storing a plurality of frequency band-specific sample sound source data of a real single engine sound of an internal combustion engine vehicle, and a reference data storage unit for storing frequency band-specific reference sound level data, wherein the reference sound level data representing a frequency-band specific minimum sound level of sound being applied to a human's specific frequency-dependent weighting filter, the stored frequency band-specific reference sound level data being dependent on the specific frequency band and a driving speed of the environmentally-friendly vehicle; a sound output unit(70,70a) for outputting a pedestrian's vehicle recognition sound; a sound sensing unit arranged to be spaced apart from the sound output unit to sense the pedestrian's vehicle recognition sound output from the sound output unit; a sound source sound extraction unit for extracting and dividing the pedestrian's vehicle recognition sound for each of a plurality of frequency bands, wherein the plurality of frequency bands includes a low frequency band lower than 500 Hz, an intermediate frequency band ranging from 2,000 Hz to 5,000 Hz and a high frequency band higher than 5,000 Hz; a control unit for storing the frequency band-specific sound data of the pedestrian's vehicle recognition sound extracted and divided by the sound source sound extraction unit in a sound storage unit of the storage unit; and a sound playback unit including a sound comparison unit for comparing the frequency band-specific reference sound level data with the extracted plurality of frequency band-specific sound data for each frequency band in response to a comparison control signal of the control unit, a sound control unit for controlling the pitch and the volume of the plurality of frequency band-specific sample sound source data to form a plurality of frequency band-specific sample control sound source data if the extracted plurality of frequency band-specific sound data is smaller than the frequency band-specific reference sound level data, and a sound mixing unit for mixing the plurality of frequency band-specific sample control sound source data corresponding to a frequency band specific control signal of a low frequency band, an intermediate frequency band or a high frequency band input according to a mixing control signal and transferring the mixed plurality of frequency band-specific sample control sound source data to the sound output unit so that the sound output unit can output the pedestrian's vehicle recognition sound.