The invention provides a method and device for constructing a
brain disease classification model, and an intelligent terminal. The
brain disease classification model construction method comprises the steps of obtaining Rs-fMRI image data from multiple
brain disease data sets; based on a plurality of preset brain templates, preprocessing the Rs-fMRI image data to obtain an average
time sequence; constructing a functional connection network corresponding to each brain
disease data set and the brain template according to the average
time sequence, and extracting features from the functional connection network to obtain a
feature matrix; constructing a plurality of initialized brain
disease classification models corresponding to each brain
disease data set according to a preset
sparse learning model, a regularization item and a
feature matrix; and performing integrated learning on the plurality of initialized brain
disease classification models, and determining a target brain
disease classification model corresponding to each brain disease
data set. According to the method, the constructed
brain function connection network has more
physiological significance, the problem of high heterogeneity in data can be effectively solved, and the universality of a brain
disease classification model is improved.