The invention discloses a helical carbon nanofiber/TiO2 composite material and application thereof, wherein the helical nanometer carbon fiber is modified by a liquid phase oxidation method to activate the helical nanometer carbon fiber, and then the helical nanometer carbon fiber loaded titanium dioxide composite electrode material is obtained by a hydrothermal method. The activated helical carbon nanofibers remove impurities such as amorphous carbon on the surface of the helical carbon nanofibers. The interstitial volume and specific surface area of the composites are increased, and the surface active groups are also increased, which enhance the loading capacity and adhesion of TiO2. The dispersion of the composites is better, the aggregation is less, and the original helical structure of HCNFs is not destroyed, which facilitated the storage and transfer of electrons. The helical carbon nanofiber/TiO2 composite material prepared by the invention has large specific surface area, goodspecific capacity, cycle performance and safety performance, and has good application prospect in the field of supercapacitor materials. The helical carbon nanofiber/TiO2 composite material has good specific capacity, cycle performance and safety performance, and has good application prospect in the field of supercapacitor materials.