The invention discloses a particle electrode for efficiently removing various organic compounds and a preparation method thereof. The preparation method comprises the following steps of adding AgNO3 to isopropanol to obtain a solution A, adding treated Al2O3 to the solution A, filtering the solution to obtain a particle B and micro-emulsion X, and obtaining a particle D after washing the particle B with ethanol; adding the particle D to X to obtain a particle F after filtration; utilizing Ce(NO3)2, NiCl2, CuCl2, isopropanol and concentrated hydrochloric acid to prepare solutions B, C, D, E and F; adding the particle F to the solution B to obtain a particle I through filtration; adding the particle I to the solution C to obtain a particle J through filtration, washing the particle J with ethanol, and drying the particle J, thus obtaining a particle K; adding the particle K to the solution D to obtain a particle L through filtration, washing the particle L with ethanol, and drying the particle L, thus obtaining a particle M; adding M to E to obtain a particle N through filtration, washing the particle N with ethanol, and drying the particle N, thus obtaining a particle O; adding the particle O to the solution F to obtain a particle P through filtration, washing the particle P with ethanol, and drying and roasting the particle P for four hours, thus obtaining the needed particle electrode.