Objective By measuring the posterolateral bundle (PLB) femoral attachment, to find a simple guideline for precisely localizing the PLB femoral bone tunnel during the doublebundle anterior cruciate ligament (ACL) reconstruction. BR>Methods Twenty cadaveric knees, aged 25 to 45 years, were dissected. With the knees flexed at 90°, the measurement of the distances from the center of the PLB femoral attachment to the anterior border and to the posterior border of the articuar cartilage of the lateral wall of the intercondylar notch was made. The collected data were evaluated and compared.Results With the knees flexed at 90°, the center of the PLB was located at (8.74±1.39)mm and (8.69±1.57)mm from the anterior and the posterior cartilage borders of the lateral wall of the intercondylar notch, respectively (EM>P/EM> =0.926). The distance between the center of the PLB attachment to the low cartilage border of the lateral intercondylar wall was (5.06±0.77)mm.Conclusion The findings in this study suggest that the position of the center of the PLB femoral insertion is at the middle of the line joining the anterior and the posterior borders of the femoral cartilage. It is a simple, easy and repeatable way to use our results as a guideline