We have synthesized a new perovskite-type compound with nominal composition CaPbO3 under about 6 GPa using a cubic-anvil-type apparatus from a mixed powder of high-purity CaO and PbO2. The XRD pattern was indexed on the basis of an orthorhombic unit cell with n = 5.667(1) Angstrom, b = 5.879(1) Angstrom and c = 8.147(2) Angstrom. This compound has a distorted perovskite-type structure, while two previously reported types of CaPbO, have a fluorite-type structure and an ilmenate-type structure. EDX analysis and the unit cell parameters suggest a deficiency in the Ca site. The electrical resistivity of this compound at room temperature was very high (> 10(5) Omega cm) in contrast to the metallic and semiconducting conductivity of BaPbO3 and SrPbO3, respectively.