1. A face recognition apparatus based on even light source, comprising a data processor ( 1 ), an imaging device ( 2 ) used to capture a face image and transport the face image to said data processor ( 1 ) for image processing, and an optical device ( 3 ) used to form an image of human face onto said imaging device ( 2 ); wherein said optical device ( 3 ) comprises a camera lens ( 4 ) and an even light source device ( 5 ) located near or surrounding said camera lens ( 4 ); said even light source device ( 5 ) comprises a light emitter ( 6 ) and an even light source generation device ( 7 ) which is used to generate indirect even light source by means of refraction, diffraction or reflection of light emitted by said light emitter ( 6 ).