The application provides a carbon nanomaterial loaded
fiber and a preparation method thereof. The preparation method comprises the following steps: mixing carbon nanomaterial, a dispersing agent and a
solvent to perform dispersion, to obtain a carbon nanometer dispersion liquid; loading the carbon nanometer dispersion liquid on the surface of a
fiber to obtain a carbon nanometer dispersion liquid loaded
fiber; and performing coagulation bath treatment on the carbon nanometer dispersion liquid loaded fiber, and
drying, to obtain the carbon nanomaterial loaded fiber. The loading method of the carbon nanomaterial is simple, efficient and low in cost, and a complex dispersion liquid formula is not required. The carbon nanomaterial loaded fiber has high purity, does not contain other auxiliary additives except the carbon nanomaterial and the fiber, and has strong
coating force and good stability.