Occlusion Detection

An occlusion detection model training method is provided. The training method includes the following steps: constructing a plurality of pieces of training sample data, where the training sample data includes a first face image added with an occlusion object, coordinate values of a first key point in the first face image, and occlusion information of the first key point; and using the first face image as input data, and using the coordinate values of the first key point and the occlusion information of the first key point as output data, to train an occlusion detection model, so that the occlusion detection model outputs, based on any input second face image, coordinate values of a second key point included in the second face image and an occlusion probability of the second key point.