The invention relates to a sleep staging method and device. The method comprises the following steps of acquiring a physiological signal from a collected original polysomnogram, performing noise reduction processing on the physiological signal, extracting digital features and neural network features corresponding to the physiological signals subjected to noise reduction processing, fusing the digital features and the neural network features to obtain fusion features, inputting the fusion feature into a preset sequence learning module to obtain a sequence feature, and classifying the sequence features, and determining the sleep stages. According to the scheme, the accuracy of sleep staging can be improved.
Sleep staging method and device