A robotic visual servo control based on active contour is presented, which combines the active contour with the image optical flow for tracking image contours related to the object of interest. The active contour provides the position information of the object to control movement of the camera. For accomplishing the robotics tasks such as positioning and tracking, by using the proposed method the real-time constraints as well as the requirements of accuracy and robustness are fulfilled. To verify the potential of our approach, we carried out several experiments.