A system for processing a point cloud in a simulated three-dimensional space includes an application server (1), client computers (3), and a database (5). The application server includes: a data acquiring module (10) for acquiring from the database point cloud data on an object measured by a measurement apparatus; a point cloud editing module (12) for editing the point cloud data to make the point cloud smooth and regular, and displaying different portions of the point cloud by using different colors; and a view changing device (11). The view changing device includes a position changing module (110) and a view changing module (111). The position changing module is used for changing a position of the point cloud in the three-dimensional space. The view changing module is used for changing a view to the point cloud in the three-dimensional space. A related method is also disclosed.