Hard disk back board connecting structure

The utility model provides a hard disk back board connecting structure which comprises a main board with a slot, a hard disk configured on a hard disk bracket and a hard disk back board with a connecting finger interface; wherein the hard disk back board is in contact with the hard disk, so that the hard disk is electrically connected with the main board only through the connecting finger interface, so as to realize assembly of the hard disk back board and the main board without wires, thereby increasing the assembly convenience.