Abstract: The anti-jamming capability of the modern radar is one of the most important parameters of the radar performance. Some methods and approaches of the anti-active jamming ECCM technologies are introduced, which are implemented in the antenna, receiving and signal processing of the airborne radar. The anti-jamming advantages of the modern radar compared with traditional radar are summarized, and the main methods and the existing anti-active jamming technology are analyzed and evaluated. Some valuable advices are provided for the development tendency of the anti-jamming technology of modern radar which have positive significance for the anti-jamming development.