The thermal stabilities of the indazole Schiff base complexes of Mn(II), Fe(III), Co(II), Ni(II), and Cu(II) were studied. The stabilities are discussed in terms of structure and type of metal ions. The activation energies E(alpha) of the different processes were evaluated and discussed in accordance with the structure of the complexes. The electrical properties of the metal complexes were also investigated with reference to the types of metal ion and organic ligand.