Fuente: Wipo "BigData" The utility model discloses a heat dissipation device for big data processing. The big data hangar comprises a base and a big data hangar body arranged on the base. The side surface of the big data hangar is sequentially provided with two insertion seats from top to bottom. Two fixing frames are respectively inserted into the two inserting seats; a mounting frame is fixedly connected between the two fixing frames in a sleeving manner; a heat dissipation unit is mounted in the mounting frame; locking mechanisms matched with the installation frame are symmetrically arranged on the side face of the big data hangar. And grips are fixedly mounted at the ends, away from the big data hangar, of the two fixing frames correspondingly, inserting mechanisms matched with the two fixing frames are arranged outside the two inserting bases correspondingly, and the locking mechanism comprises two U-shaped frames which are symmetrically mounted on the side face of the big data hangar relative to the heat dissipation unit. When the heat dissipation unit needs to be overhauled and maintained, the maintenance is simpler, more convenient, time-saving and labor-saving, and the heat dissipation unit is suitable for large-scale popularization.