Provided is a spinal reaming apparatus (1) including a sleeve (10), an eccentric shaft (20), an operated element (30) and an eccentric reaming element (40). The sleeve (10) has a first end (11) and a second end (12) opposing the first end (11). The eccentric shaft (20) is received in the sleeve (10). The operated element (30) is connected to the eccentric shaft (20) and positioned proximate to the first end (11) of the sleeve (10). The eccentric reaming element (40) is connected to the eccentric shaft (20) and disposed at the second end (12) of the sleeve (10). When rotated, the operated element (30) drives the eccentric reaming element (40) to rotate relative to the sleeve (10) on the eccentric shaft (20) such that the spinal reaming apparatus (1) will switch between a folded mode and a functioning mode.
