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With the development of the micro-electronic industry, surface mount devices (SMD) on the printed circuit board (PCB) become more and more micro size and its mounted density is increasing. It is out of date to depend on manual inspection to assure the joints quality. Instead, automated optical inspection (AOI) for solder joints based on the machine vision has become more and more important. NI Vision with the advance of flexibility and multipurpose has been a leader in machine vision and image processing. This paper proposed the devices and method to develop the AOI system for surface mount devices (SMD) with NI Vision and the inspection result is given and discussed.