With the rapid development of frontier technologies such as artificial intelligence and big data， UAV swarm are gradually becoming an important application in the military domain. Their characteristics of low cost， high flexibility， and strong survivability make them an ideal “zero-casualty” weapon in modern warfare， especially in high-risk operations like amphibious assault. This paper first reviewed the research progress of UAV swarm technology in China and abroad， analyzing the development and applications by various military forces in this field. It then systematically summarized the key factors influencing amphibious assault operations， such as defensive defenses， climate and terrain， operational tempo， and fire support. Subsequently， the advantages of UAV swarm in reconnaissance and assessment， deception and jamming， firepower strike， communication relay， and logistical support were elaborated， leading to the construction of a UAV swarm operational system. Finally， considering the complex environment of amphibious assaults， the paper proposed development recommendations for UAV swarm technology in areas such as autonomous coordination， intelligent decision-making， network confrontation， and sustained operational capabilities， providing a reference for innovative applications of UAV swarm technology in the future.