<p>A vehicle shifting mechanism configured for actuation of a clutch (2) and gear-shifting of a shift drum (4) in a transmission (1) is disclosed, which includes a camshaft (31) linked to the shift drum (4); an actuating motor (3) for driving the camshaft (31) to allow the camshaft (31) to make one revolution to shift the shift drum (4) with one gear; and a cam (32) connected to the camshaft (31) to coaxially rotate with the camshaft (31) and abutting against a release bearing actuating element (22) to actuate engagement and disengagement of the clutch (2). The cam (32) has a symmetrical contour such that the camshaft (31) driven by the actuating motor (3) is capable of making one unidirectional revolution to enable actuation of the clutch (2) and the gear-shifting of the shift drum (4) to occur concurrently.</p>
