Abstract: The lack of high performance and low cost oxygen reduction electrocatalysts, especially operating in the wide pH range, is one of the key obstacles restricting the large-scale applications of new energy conversion technologies such as fuel cells and metal-air batteries. In this work, based on the synthesis mechanism of conventional polymer-derived carbon materials, a bimetallic oxy-nitride (Co_mTi_nO_xN_y)-Co single atom (Co-NC) composite catalyst was prepared by an associated hydrothermal polymerization-pyrolysis method through selecting suitable precursor molecules and simultaneously introducing TiO₂ nanoparticle in the process of polymerization. The bimetallic cobalt-titanium oxy-nitride Co-NC composite catalyst exhibits better ORR activity in a wide pH range (0−13) than the conresponding pure N-doped carbon nanotubes, titanium oxy-nitride/N-CNTs and Co-NC catalysts, providing a new idea for the development of ORR electrocatalysts with high performance and low cost.