The utility model provides a automotive transmission bearing position structure, bearing unit (1) in its outer lane (10) micro -gap assembles pilot hole (31) on box (3) of derailleur with cooperating to and the middle part is connected in the one end of outer lane (10) of bearing unit (1), is close to bearing clamp plate (2) periphery position and box (3) of derailleur be connected: outer lane (10) and bearing clamp plate (2) the formula structure as an organic whole of bearing unit (1). So, just can not drive its outer lane at bearing unit roll during operation and rotate for box (3) of derailleur, the outer lane of bearing unit can not rotated for the bearing clamp plate. Therefore the automotive transmission bearing position structure that does not just have a prior art produces pivoting friction, leads to the phenomenon that rubs and harm between the pilot hole of the pilot hole of the outer lane of bearing unit and box and bearing unit clamp plate and cyclic annular assembly portion. The utility model discloses a life is higher.