UAV swarms are an effective way to enhance multi domain joint reconnaissance capabilities. Focusing on the severe threats and practical challenges brought by the transformation of the US military's electromagnetic spectrum warfare form to battlefield reconnaissance technology, accurately grasping the technical means and application strategies of foreign new unmanned aerial vehicle clusters for multi frequency band and full domain joint electronic reconnaissance, strengthening core capabilities such as air space integrated multi domain reconnaissance interception, air ground collaborative regional electromagnetic gaze, and electronic reconnaissance “network cloud” combat support system, to ensure that unmanned aerial vehicle clusters efficiently carry out joint reconnaissance tasks, To lay the foundation for winning future high-end wars.