A method, an apparatus and an electronic device for face liveness detection based on a neural network model are provided. The method includes: a target visible light image and a target infrared image of a target object to be detected are obtained (S101); a first face image is extracted from the target visible light image, and a second face image is extracted from the target infrared image (S102); a target image array of the target object is generated based on multiple monochromatic components of the first face image and a monochromatic component of the second face image (S103); and feeding the target image array into a pre-trained neural network model for detection, to obtain a face liveness detection result of the target object (S104).