McHarg,a noted American landscape architect,hasbecome well known around the world as one of first group of ecologicalplanners since 1960s;As a pioneer of applying subjectively ecologicalprinciples to urban and regional landscape planning,he created a scienti-fical ecological planning method which has a far-reaching affect to mo-dern planning and design science in the world.This paper introducesMcHarg's philosophic idea and his ecological planning method,clarifiesthe perspective of applying the method to landscape planning and designin China.