Abstract: Rechargeable water zinc-manganese battery has a wide application prospect in large-scale energy storage due to its high safety, low cost and environmental friendliness. However, due to poor conductivity of manganese oxide and dissolving in water due to disproportionation reaction during battery charging and discharging, the battery has low capacity and poor cycle stability. In this paper, the carbon nanofiber (CSCNFs) composite material with raised structure and conductive network was prepared by double-needle pair spinning electrostatic spinning technology, combined with pre-oxidation and high temperature annealing process, and the surface of carbon nanofiber was modified by doping carbon nanotube (CNTs) and conductive carbon black (Super-P). MnO₂@CSCNFs cathode was prepared by loading α-MnO₂ active substance on the fiber surface. CNTs and Super-P doping were modified on the surface of carbon nanofibers. Among them, CNTs and Super-P cooperated to construct conductive network channels with node structure to realize efficient electron-ion cooperative transport. With the cathode of MnO₂@CSCNFs zinc ion battery kinetics and electrochemical performance is significantly improved, the initial capacity reaches 784.8 mA·h·g⁻¹, and after 100 cycle remain discharge specific capacity of 500 mA·h·g⁻¹. The discharge specific capacity of 290.8 mA·h·g⁻¹ is maintained at a high current density of 2 A·g⁻¹, and the capacity recovery rate is up to 96.33% when the current density is restored to 0.1 A·g⁻¹.