The invention discloses a preparation method for a high-activity iridium-zirconium-series compound oxide anode for hydrometallurgy. The high-activity iridium-zirconium-series compound oxide anode comprises an iridium-zirconium binary compound oxide inert anode, an iridium-ruthenium-zirconium ternary compound oxide inert anode, an iridium-cobalt-zirconium ternary compound oxide inert anode, an iridium-molybdenum-zirconium ternary compound oxide inert anode, an iridium-rubidium-zirconium ternary compound oxide inert anode and an iridium-ruthenium-rubidium-zirconium quaternary compound oxide inert anode. The prepared anode consists of a titanium substrate and an oxide coating, the zirconium dioxide and the rubidium oxide in the coating are amorphous phases, the iridic oxide and the rutheniumdioxide are rutile phases, the cobaltosic oxide is the spinel phase, the molybdenum trioxide is an alpha phase, the adding of the zirconium, or ruthenium or cobalt increases the oxygen evolution activity surface area of the anode, the anode activity is improved, and the adding of the rubidium or molybdenum improves the conductivity of the anode. The preparation method is simple in preparation process, the prepared anode has higher oxygen evolution catalytic activity and longer service life, and as the precious metal iridium element in the coating is replaced by the non-precious metal, the production cost of the anode is reduced.