The equipment of micro-acoustic detection analysis and the processing method of audio signal array based on this equipment, which is the field of micro-acoustic detection, could give a solution that having an excessive sound intensity lower limit using capacitor micro-acoustic detector, and using current way of audio signal processing could not identification and positioning for sound source from micro-acoustic detector at same time. This equipment detects sound pressure based on micro-acoustic detection cell of graphene membrane. The method includes separate the noise from audio signal, compare the extract audio feature and sound source position information with multi sound source signal stored in memory, identifying the target sound source, and the procedure of positioning the sound source according the sound source position information. This invention could be applied to the micro-acoustic detection and then identification and positioning using the detected sound source.