Micro-expression-based user psychoanalysis method and device, equipment and storage medium

The invention discloses a user psychological analysis method based on micro-expressions, which is applied to the technical field of artificial intelligence and is used for improving the accuracy of an analysis result of analyzing the psychology of a user based on the micro-expressions. The method provided by the invention comprises the following steps: acquiring a to-be-identified video; extracting a frame image containing a human image picture from the video; identifying the frame of image through a pre-trained micro-expression identification model, and when the frame of image contains micro-expressions, outputting time sequence sub-expressions contained in the corresponding frame of image; matching a corresponding decision tree by taking the first sub-expression in the time sequence sub-expressions as a root node; sequentially matching the remaining sub-expressions in the time sequence sub-expressions in the decision tree according to the time sequence ranking of the corresponding sub-expressions; and when