Most of organic metals are formed from molecular crystals.The electronic struotare of the molecular crystals consists of two levels.The principal one is the electronic structure of monomer molecules; and the second one corresponds to the interaction between monomers in crystal and may be considered as a perturbation.Starting from this point of view, the effect of the electronic strnotnre of monomer molecules on the electrical conductivity of organic metals is investigated.We have pointed out that the creation and migration of the charge-carriers in crystals are closely related to the electronio strnotnre of monomer moleonles in crystals.If the conditions of energy correlation, symmetry match and overlap between the frontier orbitals of the corresponding monomer molecules are satisfied well in both creation and migration.processes of charge-carriers, then it is possible for crystals to have a good electrical conductivity.That is, the above three conditions are necessary for organic metals in order to become good conduotors.The corresponding logical graphs are shown in Fig.1 and 2.Thus, by knowing the electronic structure and the packing condition of monomers in crystal, it is possible to get some qualitative informations abort the electrical conductivity of organic metals.