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In this paper, Election Campaign Optimization algorithm is applied to solve the difficulty in PID control that the tuning parameters of PID controllers could not be determined well by conventional methods. Tuning PID controller parameters is a typical three variable optimization problem without constraint condition. An example is employed to test this method, It is found that the method could be find the best parameters that can bring on a optimal control performance, the simulation results is better than that in involved reference. This indicates that the tuning method is feasible.