The invention provides a laser safety control device, which comprises a depth camera, which comprises a laser light source and is used for collecting a depth image of an object in a first depth range;a range sensor, which is used for detecting proximity of an object in a second depth range, and magnitude relation between the lower limit of the first depth range and the upper limit of the second depth range being adjustable; and a processor, which is connected with the depth camera and the range sensor, and is used for judging whether the proximity of the object is risky, and carrying out control on the laser light source when the proximity of the object is risky. The invention also provides a laser safety control method. The laser safety control device and method can effectively prevent laser from causing damage to the collected object in the 3D image acquisition process, can realize multiple-proximity detection, and have different safety levels.