The latest results of conventional beauty-hadron spectroscopy from the LHCb experiment are introduced in this proceeding. These results contain the observation of new excited ${\it{B}}_s^{0}$ states in ${\it{B}}^{+}K^-$ final state, the observation of a new excited ${\it{\Xi}}_b^0$ state in ${\it{\Xi}}_b^-\pi^+$ final state, the observation of two new exited ${\it{\Xi}}_b^0$ states decaying to ${\it\Lambda}_b^0 K^-\pi^+$ and a search for doubly heavy baryons ${\it\Xi}_{bc}^0$ and ${\it\Omega}_{bc}^0$ decaying to ${\it\Lambda}_c^+\pi^-$ and ${\it\Xi}_c^+\pi^-$.