在机器视觉三维测量中，特征点匹配是个难题．本文提出了采用激光投射形成特征点，并介绍了一种用数字和模拟集成电路实现的激光特征点扫描控制系统．该系统的硬件结构较简单，和具有单片机的控制功能，事先不需编写复杂的程序和示教，能使测量装置方便地测量各种复杂形状的物体． Feature point matching is a difficult problem in machine vision 3D measurement. This paper presents the formation of feature points using laser projection and introduces a laser feature point scanning control system using digital and analog integrated circuits. The hardware structure of the system is relatively simple, and has the control function of the single-chip microcomputer. Without complicated programming and teaching in advance, the measuring device can conveniently measure objects with various complicated shapes.