The π electron magnetic susceptibility of D₂-C₇₆、C_2v-and D₃-C₇₈、C₂-C₈₂、D₂-and D_2d-C₈₄and C₂-C₉₀ is calculated with Gauge invariant molecular orbitals method. The calculation results show that these carbon Cluster molecules have large diamagnetic susceptibility. Thus the π electrons of these molecules have large delocal motion and aromatic character.