In order to solve the possible collision problem in the process of sub-interceptors intercepting UAV cluster. this paper proposes a collision avoidance pure proportional guidance law (CA-PPN) by combining the virtual repulsion force with the pure proportional guidance law. Firstly. it proposes an operational concept of submunition missile intercepting UAV cluster. https://www.bekindtopets.com/great-deal-Psithurisme-Definition-Affiche-great-choice/