Three-dimensional color point cloud construction method, device and system and storage medium

The invention discloses a three-dimensional color point cloud construction method, device and system and a storage medium, the three-dimensional color point cloud construction method is applied to processing equipment, and comprises the following steps: a target workpiece is conveyed through a conveying device to pass through a fixed bracket, and a laser beam is emitted to the target workpiece through a laser emitting device; in the process that the line laser beam scans the target workpiece, discrete light spot images formed by projecting the line laser beam on the target workpiece are continuously obtained through a visual sensing device; acquiring a three-dimensional coordinate of a target pixel point corresponding to the discrete light spot image; acquiring color information of the target pixel point through a visual sensing device; and matching the color information with the three-dimensional coordinate of the target pixel point to obtain a three-dimensional color point cloud model of the target workpiec