The invention discloses a preparation method of dye-sensitized 
solar cell platinum loaded 
silicon carbide counter electrodes. The preparation method comprises the steps of (1) preparing Pt-SiC composite counter 
electrode materials: respectively preparing the H2PtCl6 solution and the SiC alcoholic solution, conducting ultrasonic mixing on the H2PtCl6 solution and the SiC alcoholic solution, adjusting the pH value, conducting 
microwave heating after 
ultrasonic dispersion is carried out, conducting washing, filtering and 
drying, conducting heat treatment in the 
inert atmosphere, and obtaining the Pt-SiC composite counter 
electrode materials, and (2) building a Pt-SiC counter 
electrode thin film: washing and 
drying FTO conducting glass, adding the Pt-SiC composite counter electrode materials into a dispersing agent, conducting dispersing 
processing to obtain a counter electrode catalytic material 
sizing agent, 
coating the conducting glass with the counter electrode catalytic material 
sizing agent to form the Pt-SiC counter electrode thin film, and conducting heat treatment in the 
inert atmosphere to obtain the 
platinum loaded 
silicon carbide counter electrodes. The preparation method is low in building cost, simple in operation process, low in 
energy consumption, 
environmentally friendly and high in compatibility with the photo-
anode preparation technology. The 
precious metal Pt electrodes can be replaced by the Pt loaded 
silicon carbide counter electrodes, and the Pt loaded 
silicon carbide counter electrodes can be applied to dye-sensitized 
solar cell devices.