Abstract: A pivotal rotation adjusting apparatus for a flat panel display device includes a fixed frame having a hole formed in each opposing side surface thereof, a pair of vertical rotation shafts respectively pivotally carried at one end in corresponding ones of the holes in the fixed frame and each having a pin axially extended from an end thereof, a vertical rotation frame disposed on each opposing side of the fixed frame, and having a hole receiving therein a corresponding one of the pins axially extended from a respective one of the vertical rotation shafts, a horizontal rotation shaft fixedly engaged to a lower portion of the fixed frame and being pivotally rotatable in conjunction with the fixed frame, a base housing rotatably supporting the horizontal rotation shaft therein, and a housing cover correspondingly engaged to the base housing. The apparatus permits effective adjustment of a horizontal rotation angle as well as a vertical rotation angle of the display screen section.