The invention discloses a preparation method of a body odor removing wearable sports bandage. Polyurethane is dissolved in tetrahydrofuran and N, N-dimethyl formamide blended solvents, magnetic stirring is performed at the temperature of 40-50 DEG C until solution is uniform and stable, and a bandage base is prepared from spinning solution in an electrostatic spinning mode under the condition of the temperature of 30-40 DEG C and the humidity of 35-45%. Beta-cyclodextrin and silicon dioxide are dissolved in N, N-dimethyl formamide solvents, magnetic stirring is performed after ultrasonic uniform dispersion for 1-2 hours until the solution is uniform and stable, and a micro-sphere layer is prepared from the spinning solution in an electrostatic spraying mode on the basis of the polyurethanebase to form a composite film. The composite film has hydrophilic and oleophobic functions and can isolate short chain fatty acid from bacteria. The film is soaked in the solution containing nano-silver particles, so that the nano-silver particles are loaded to the film, and body odor generated by reaction of the bacteria and oil substances is further decreased. The preparation method is simple in technology and good in operability and has a good application prospect.