The appearance of visual programming language has brought great changes to the design of man-machine interface. In the paper, through the research on current visual programming, a graph control is proposed and used as an interface design of an image processing platform. Algorithm information, which is implemented by DLL of VC, is encapsulated in these graphical controls through the use of packaging technology, and users can develop their own software by using the graphical controls, in order to avoid the compililation of code and improve the speed of image processing. The development methods of graphical controls can enhance the flexibility of configuration and improve development efficiency, and to achieve software reuse.