The strategy of active disturbance rejection controller(ADRC) and its applications in robot uncalibrated visual serving is summarized. The philosophy of ADRC is shown to be consistent with the characteristics of the uncalibrated visual serving problem. Then the procedure of controller design is thoroughly illustrated for robotic hand-eye coordination based on ADRC principles, as well as the convergence and parameter tuning of the controller on ADRC strategy. Some issues that are still left unsolved are discussed, which will be the future directions in this strategy.