Abstract: Scientifically and reasonably planning the sensor tasks for maritime formation, integrating multi-type sensor resources such as radar, electro-optical, and electronic reconnaissance to construct a comprehensive reconnaissance and early warning system that covers the entire domain and possesses both offensive and defensive capabilities, is the key to overcoming the limitations of single-platform operations and advancing the development of efficient system-level combat capabilities for maritime formation. Based on the core characteristics of early warning and detection task planning for maritime formation, such as real-time, collaboration, and dynamic nature, etc., the complete implementation process from requirement analysis, scheme generation to dynamic adjustment in the task planning is systematically sorted out in this paper. Furthermore, the research progress and application pathways of key technologies involved in early warning and detection task planning for maritime formation, including detection range prediction, position deployment, and sensor task allocation, are summarized. Considering the complex and evolving combat requirements of future naval battlefields, development suggestions for technological iteration and system optimization are proposed, aiming to provide valuable references and directions for subsequent theoretical research and engineering practice in the field of early warning and detection task planning for maritime formation.