A storage server comprises a base, a memory module, a power supply and a control module. The memory module, the power supply and the control module are respectively arranged in the base in a group way from two ends of the base. The memory module comprises a magnet stand which takes in a plurality of hard disks and a backboard which is fixedly arranged at the back end of the magnet stand. The two side surfaces of the backboard are respectively provided with a plurality of connectors which are correspondingly connected with the power supply, the control module and the hard disks. The hard disks with different specifications can be used by separately replacing the memory module but without needing to replace the storage server, thus saving the cost. The storage server has fast and convenient assembling, dismounting and attended operation.