Machining mass products need a rapid measuring system,but the traditional contact measuring methods do not meet the demands of mass production. Meanwhile,some non-contact measuring methods,for example,structured light methods and photogrammetry-based systems,they usually require intense manual intervention during operating. A 3D coordinate laser non-contact measuring system using 1D laser sensor and a servo control coordinate system was proposed to fast collect dense 3D points of the objects. The laser sensor is installed on the z-axis perpendicular to the xoy scanning platform. The errors are removed by designing filters and calibrating the entire system. The measuring results show that the measuring errors of single point are less than 10 μm and the measuring errors of the whole surface are less than 20 μm.