Beam halo-chaos in high-current accelerators has become a key concerned issue because it can cause excessive radioactivity from the accelerators therefore significantly limits their applications in industry,medicine, and national defense. Some general engineering methods for chaos control have been developedin recent years, but they generally are unsuccessful for beam halo-chaos suppression due to manytechnical constraints. Beam halo-chaos is essentially a spatotemporal chaotic motion within a high power Beam halo-chaos in high-current accelerators has become a key concerned issue because it can cause excessive radioactivity from the accelerators therefore significant limits their applications in industry, medicine, and national defense. Some general engineering methods for chaos control have been developed in recent years , but they are unsuccessful for beam halo-chaos suppression due to many technical constraints. Beam halo-chaos is essentially a spatotemporal chaotic motion within a high power