A computer-implemented method for identifying a gaze behavior in a three-dimensional space, comprising: acquiring eye movement data of two eyes of a user, wherein the eye movement data comprises: sampling time points, 3D coordinates of positions of the two eyes at the sampling time points in a three-dimensional space coordinate system and 3D coordinates of positions of fixation points of the two eyes; selecting eye movement data for identifying a gaze behavior from the acquired eye movement data, and calculating eye movement angular speeds at a plurality of sampling time points in the selected eye movement data; determining gaze point data corresponding to a gaze behavior based on the calculated eye movement angular speeds and an eye movement angular speed threshold corresponding to the gaze behavior; merging gaze point data that satisfies both of a temporal proximity condition and a spatial proximity condition in the gaze point data to obtain a gaze duration and 3D coordinates of a gaze point, wherein the temporal proximity condition is that an interval between the sampling time points is smaller than a first set duration, and the spatial proximity condition is that a visual line included angle between adjacent gaze points is smaller than a set angle and a distance between adjacent gaze points is smaller than a set distance; and determining a gaze point with a gaze duration larger than a second set duration based on the merged gaze point data, and identifying the gaze behavior; characterized in that, wherein the visual line included angle between the adjacent gaze points is smaller than 0.5°; the distance between the adjacent gaze points is smaller than a set distance; and a calculation formula of the set distance is L = λ × min D 1, D 2 × tan θ 57.3 ≈ λ × min D 1, D 2. θ 57.3, where L represents the set distance λ is an amplification coefficient, λ takes a value from 1.0 to 1.3, D 1 and D 2 represent distances from the eyes to two temporal proximity gaze points respectively, and θ represents a visual line included angle between the adjacent gaze points; and the gaze behavior comprises human eyes gazing a gaze point for a preset time. acquiring eye movement data of two eyes of a user, wherein the eye movement data comprises: sampling time points, 3D coordinates of positions of the two eyes at the sampling time points in a three-dimensional space coordinate system and 3D coordinates of positions of fixation points of the two eyes; selecting eye movement data for identifying a gaze behavior from the acquired eye movement data, and calculating eye movement angular speeds at a plurality of sampling time points in the selected eye movement data; determining gaze point data corresponding to a gaze behavior based on the calculated eye movement angular speeds and an eye movement angular speed threshold corresponding to the gaze behavior; merging gaze point data that satisfies both of a temporal proximity condition and a spatial proximity condition in the gaze point data to obtain a gaze duration and 3D coordinates of a gaze point, wherein the temporal proximity condition is that an interval between the sampling time points is smaller than a first set duration, and the spatial proximity condition is that a visual line included angle between adjacent gaze points is smaller than a set angle and a distance between adjacent gaze points is smaller than a set distance; and determining a gaze point with a gaze duration larger than a second set duration based on the merged gaze point data, and identifying the gaze behavior; characterized in that, wherein the visual line included angle between the adjacent gaze points is smaller than 0.5°; the distance between the adjacent gaze points is smaller than a set distance; and a calculation formula of the set distance is L = λ × min D 1, D 2 × tan θ 57.3 ≈ λ × min D 1, D 2. θ 57.3, where L represents the set distance λ is an amplification coefficient, λ takes a value from 1.0 to 1.3, D 1 and D 2 represent distances from the eyes to two temporal proximity gaze points respectively, and θ represents a visual line included angle between the adjacent gaze points; and the gaze behavior comprises human eyes gazing a gaze point for a preset time.