Fixing device of light truck oxidation catalyst device

The utility model relates to a fixing device of a light truck oxidation catalyst device. The fixing device comprises a mounting support and a clamping hoop. The mounting support and the clamping hoop are fixedly connected through a bolt. Elastic washers are arranged between a nut of the bolt and the mounting support and between the mounting support and the clamping hoop. The mounting support is provided with a pair of support fixing feet. The fixing problem of the light truck oxidation catalyst device is solved, meanwhile, vibration transmitted to the oxidation catalyst device from a whole truck is effectively lowered, and the phenomenon of breaking due to stress concentration of a fixing support is avoided.