The commonly used method to determine the vertical bearing capacity is in-situ load test. Based on the static load test and axial stress measure data,the performance of bearing capacity,axial force,pile side resistance and tip resistance is analyzed. The results show that the axial force decreases with depth,and gradually increases with increasing load under vertical load. The super long post-grouting pile has the characteristics of the friction pile,its QS curve has no obvious breaking point and the load delivery depends mainly on the side friction; the pile side resistance and tip resistance have interaction and act non-synchronously. Based on calculation of bearing capacity,the correction of factor for side friction and tip resistance is presented,which provides a useful reference for pile foundation design.