3D sensing technology mimics the human-visual system using optical technology, which allows products integrated with AI (Artificial Intelligence) and IoT (Internet of Things) technologies to have 3D computer vision. Besides improving facial recognition accuracy and human-machine interaction via hand movements, 3D sensing technology also speeds up the pace of Level 5 autonomous vehicle developments. With this technology, industrial robots can perform complicated tasks such as 3D picking or product quality inspection. This report looks into 3D sensing technology and its potential applications in the next generation of IoT (Internet of Things).