The invention discloses a bidirectional independent adjustable switch support mechanism. The bidirectional independent adjustable switch support mechanism comprises a sliding block (12), a horizontal limit plate (11), a longitudinal limit plate (10), a steel ball (9) and a switch (8). The bidirectional independent adjustable switch support mechanism is characterized in that a boss of the horizontal limit plate (11) is installed in a groove of the longitudinal limit plate (10), the sliding block (12) is mounted in a groove of the horizontal limit plate (11), the steel ball (9) is placed in the longitudinal limit plate (10), a switch mounting screw (7) sequentially penetrates the longitudinal limit plate (10) and the horizontal limit plate (11) to enable to switch (8) to be fixed on the sliding block (12), gaps do not exist between the sliding block (12) and the groove of the longitudinal limit plate (10) horizontally, gaps do not exist between the sliding block (12) and the groove of the horizontal limit plate (11) longitudinally, and the whole mechanism is installed with an upper groove of a main support (2) through the boss of the horizontal limit plate (11) in a positioning mode. The position of a switch can be adjusted independently and accurately in a bidirectional mode through the switch support mechanism.