A method of controlling chaos based on intermitant proportional pulse perturbation to the system parameters is proposed. The unidimensional and two-dimensional discrete chaotic systems are studied respectively with the method proposed, and a series of stable 2nP and 2n*3mP as well as 128P,192P high periodic orbits are obtained. The analysis shows that the method of intermitant proportional pulse to the system parameters is equivalent to the method of intermitant proportional feedback to system variables for controlling chaos in unidimensional logistic map.