Abstract: It describes a kind of Charge-Coupled Device(CCD) Measurement System for special use. Under the control of the single-chip microcomputer subsystem, the measurement system can collect, save and process the positioning signal of laser spots from CCD, then sends the result to computer for storage, display and processing through far-distance communication interface, and with the system it can detect the deflection of truss at multi points at the same time. Through a long time operation, it shows that the system has the characteristics of celerity, accuracy and convenience, and also it can be widely used for multi-point measurement and detection.