Desktop computer graphics card slot with multidirectional installation function

The utility model discloses a desktop computer graphics card slot with a multidirectional installation function, which comprises an assembly base positioned at the bottom of a case, an integrally formed raised assembly key is arranged on the assembly base, and the raised assembly key and a turntable plate are mutually matched for installation. Assembling grooves matched with the protruding assembling keys are formed in the bottom of the rotating disc plate, stand columns are symmetrically installed on the two sides of the rotating disc plate through fixing screws, and a first rotating shaft disc and a second rotating shaft disc are detachably installed on the stand columns on the two sides correspondingly; the first rotating shaft disc and the second rotating shaft disc are connected through a connecting column, the connecting column is sleeved with a column rod, the column rod is provided with a positioning frame through a fixing screw, and the positioning frame is provided with a first video card groove and