Optical measuring device generating point cloud data

Provided is a measuring device that can easily perform high-accuracy measurement at low cost. A stage is held on an installation part. A head unit including a light projecting unit and a light receiving unit, and the installation part are fixedly coupled together by a stand. A light shielding mechanism is attached to the stand in order to block ambient light. The light shielding mechanism includes a front cover member that covers a space on the stage from above. Point cloud data representing the three-dimensional shape of the measuring object is generated based on the light reception signal. Designation of a point to be measured in the measuring object is received, and a measurement value at the designated point is calculated based on the obtained point cloud data.