We systematically study the magnetic dipole moments of multiquark states. In this study, the magnetic dipole moments of possible $ B^- B^{*-} $ , $ B^- B^{*-} $ , $ B^- B^{*-} $ , $ B^- B^{*-} $ , $ B^- B^{*-} $ , $ B^- B^{*-} $ , $ B^- B^{*-} $ , $ B^- B^{*-} $ , and $ B^- B^{*-} $ states are extracted using light-cone sum rules. We explore the magnetic dipole moments of these states in a molecular picture with spin-parity $ B^- B^{*-} $ . The magnetic dipole moments of hadrons include useful information on the distributions of internal charge and magnetization, which can be used to understand their geometrical shapes and quark-gluon organization. The results of the present study along with the spectroscopic parameters may help future theoretical and experimental research on the characteristics of doubly-bottom tetraquark states.