Failure of bridges due to scour at abutments is a common occurrence. Also, vegetation exists widely in natural river system, especially in flood plain. Investigation of shape and vegetation cover on flow structure in abutment scouring is the main goals of this study. So laboratory flume experimental detection were made by using Acoustic Doppler Velocimeter (ADV) to determine velocity, Reynolds stress distribution and turbulent intensities in four runs: 1- vertical-wall abutment 2- wing-wall abutment 3- wing-wall abutment with circulate edge 4- wing-wall abutment with circulate edge and vegetated bank. Experiments were carried out in a horizontal re-circulating flume in the Hydraulic Laboratory at the Isfahan University of Technology in Iran. The flume had 7 m long, 0.33 m wide and 0.36 m deep. Uniformly graded sand of a median diameter, d, of 0.71 mm with the geometric standard deviation 1.2 was applied in this study. The rice stems with a median diameter of 2.7mm were used to simulate vegetation on the flume walls. In upstream, the time-averaged velocity vector and turbulent intensities show the existence of primary vortex associated with down-flow inside the scour hole and in downstream, the flow field is essentially ill defined, comprising irregularities due to the vortex shedding. Also, results reveal scouring depth and equilibrium time decrease 25% and 32% respectively, from vertical-wall abutment to wing-wall abutment run. These results have been happened as a result of stronger primary vortex in vertical-wall abutment in comparison with wing-wall abutment. the other run of this study compare flow structure in scouring hole around a wing-wall abutment with circulate edge for the vegetated and bare banks over a sand-bed flume. Results reveal that the vegetated banks in a flume changed the process of scouring as well as incipient motion of particles, decreasing the equilibrium time and scouring depth considerably. Comparison of bare banks and vegetated banks showed that the equilibrium time and scouring depth were reduced from 20 hours to 9 hours and from 8.4 cm to 3.2 cm, respectively. Vegetation increases the stream-wise velocity at the central line of flume and decreases it near the banks, causing a larger velocity gradient and faster movement of particles in compared with bare banks run. Also, investigation of velocity profiles and turbulent intensities at the upstream of abutment with vegetation cover on the flume walls shows that primary vortex decreases at upstream of abutment but the effect of vortex in downstream has not changed. Key words : scouring, cover vegetation, abutment, wing-wall abutment, wing-wall abutment with circulated edge, vertical-wall abutment.