In order to reduce residual stress, the traditional process often uses the method of forming first and then vibration aging. Now, the low frequency vibration is applied to the forming process to shorten the manufacturing process flow and obtain stamping parts with low residual stress. Therefore, the vibration assisted bending experiment of 6082 aluminum plate was carried out by high-precision servo press, and three variables of amplitude, frequency and depression rate were set up. Then, the residual stress on the curved arc surface of sample after vibration assisted bending was measured, and the average misorientation at the inner curved surface was characterized by EBSD and the average dislocation density of the curved arc section was measured by XRD to obtain the influence laws of different vibration parameters on residual stress and dislocation density. The results show that vibration assisted forming effectively reduces the residual stress up to 36.96%, and the residual stress decreases first and then increases with the increasing of amplitude, increases first and then remains unchanged with the increasing of frequency, and increases with the increasing of depression rate. Finally, through the simulation and analysis of low frequency vibration assisted bending process, combined with the dislocation related theory, the micro-mechanism of vibration assisted forming affecting residual stress is explained.