A feeding analysis system of milk-production livestock includes a plurality of image analysis devices and a central server signally connected to each image analysis device. Each image analysis device is configured to capture a plurality of images of a feeding field, perform a clear processing on the images, identify a plurality of facial images of the plurality of milk-production livestock for feeding action from the cleared images and generate a plurality of capturing signals by capturing the plurality of facial images and a feeding duration corresponding to the facial images, and transmit the capturing signals to the central server. The central server is configured to receive the capturing signals, identify the milk-production livestock identities of the facial images of the corresponding capturing signal and generate a feeding record by integrating the identified milk-production livestock identity and the feeding duration of the capturing signal.
