Digital image acquisition is the backbone of image processing technology application. The general method of image acquisition mainly arm to single image. But with the development of technology, more and more applications require double or more images. At first the theory of image acquisition and Opencv are introduced. Then the process of double image acquisition system is designed and the development process is described in detail. At last the image acquisition system is developed based on Opencv. The experiments have shown that image acquisition system has advantage of convenience to high eff...