Fixing structure for PCB grounding

The utility model relates to the technical field of containing mechanisms, in particular to a PCB grounding fixing structure which comprises a rectangular PCB, a hardware pressing plate and a conductive cushion block, two strip-shaped holes are formed in the direction of at least one diagonal line of the rectangular PCB, the two strip-shaped holes are formed in the positions of the two vertex angles of the rectangular PCB respectively, an installation area for fixing the rectangular PCB is arranged on the hardware pressing plate, and the conductive cushion block is arranged in the installation area. Two connecting plates matched with the two strip-shaped holes are arranged in an installation area on the hardware pressing plate, and the two conductive cushion blocks are arranged in the installation area and located on one sides of the two connecting plates respectively. And the rectangular PCB and the hardware pressing plate are fixed to press the two conductive cushion blocks. The problems that the thickness