Fuente: Wipo "BigData" The utility model discloses a big data server fixing device, and belongs to the technical field of big data server installation. The device comprises a bottom plate and a corner point clamping assembly, an L-shaped corner point clamping plate A is fixedly arranged on the bottom plate, a T-shaped sliding groove is formed in the bottom plate, and the corner point clamping assembly is connected with the T-shaped sliding groove in a sliding mode and connected with the bottom plate through a distance adjusting assembly. According to the utility model, the L-shaped corner clamping plate A and the L-shaped corner clamping plate B jointly clamp and fix a pair of opposite angles at the bottom of the big data server, so that the length direction and the width direction of big data are effectively fixed, and the fixing is reliable. Due to the fact that the distance between the L-shaped corner point clamping plate A and the L-shaped corner point clamping plate B is adjustable, the device is suitable for fixing a plurality of big data servers with different length and width specifications.