Fixing device for fan

The utility model relates to a fan fixing device. The utility model comprises a square basal body, wherein the center of the basal body is provided with a through hole, and four corners of the basal body outside the through hole respectively, upwards and convexly extend a convex post. Two opposite lateral margins of the basal body respectively and upwards extend two first buckling parts on appropriate positions corresponding to the fan, the top end of each first buckling part correspondingly and inwards extends a first clasp, each first buckling part is provided with a long penetrated opening below the first clasp, the bottom wall of the opening upwards and convexly extends a second buckling part, and the free end of the second buckling part inwards folds and extends to form a second clasp corresponding to the lower part of the first clasp. Both ends of the bottom surface of the basal body respectively and downwards extend to form two fastening parts.