The direct signal leakage of the Continuous Wave (CW) Radar is a key technique problem, which is analysed in this paper. And a mixed analog and digital method of restraining the direct signal leakage is proposed for CW Radars. A scheme of the link of digital clutter filter and receive channel equilibrium filter is also given when the proposed method is implemented. The validity of the proposed method and its implementation has been verified by the results of computer simulation and radar outfield trial.