Traditional magnetron radar has dominated civilian navigation radar field for a long time and the application of new technology and new system in this field brings new development opportunities for civilian navigation radar. Under the background of the emergence of new civilian navigation radar in recent years, this paper expounds the classification,principle,development status of civilian navigation radar, and then introduces the new technology used in navigation radar and new applications of navigation radar,such as oil spill detection and wave detection. It's pointed out that solid-state emission,digitization,integrated naviga-tion, low radiation will be the development trends of civilian navigation radar and the use of these new technologies will improve the reliability and environmental adaptability of navigation radar.%传统磁控管雷达已占据民用航海雷达领域较长的一段时间，新技术新体制在这一领域的应用给民用航海雷达发展带来了新的机遇。以近年出现的新型民用航海雷达为背景，简述了民用航海雷达的分类、原理组成和发展现状，介绍了航海雷达使用的新技术以及在溢油探测、海浪监测领域的新应用，指出固态发射、数字化、综合导航、低辐射将是民用航海雷达的发展方向，这些新技术的使用将提高航海雷达的可靠性和环境适应性。
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