The electrical conductivity (s) and Seebeck coefficient (S) of trivalent Nickel and Chromium zirconates are measured in the temperature range 500-1200K. It has been concluded that chromium zirconate undergoes a phase transition at 790 and nickel zirconate at 750K. In certain temperature ranges log s and S depend linearly on T^-1. It is shown that conduction mechanism in these solids is essentially band type with O^2- : 2p and M³⁺ : 4s (transition metal 4s) bands as valence and conduction band. Energy band gap and mobility of the charge carriers have also been evaluated.