Desert pavement is one of the most widespread phenomena in desert areas resulting from accumulation of fine wind sediment beneath the stone surface on alluvial area. The stream network in the pediment has created a complex association of alluvial surface. The distributions of these alluvial surfaces in the current study area presented a picture of islands with different size and soil evolution degrees. Four sampling sites were detected along the route of one of the main streams on the pediment, and 13, 19, 18 and 15 islands were selected in sites namely as 1, 2, 3 and 4, respectively. ,Two coarse and fine sections were identified in each alluvial island. Then were measured AV B layer thickness, surface rock fragment granulation, the width of these coarse fine sections and the total width of each island. The fine layer thickness considered as soil and pavement evolution degrees. The pavement evolution degree and size of alluvial islands increase from site 1 to site 3. Alluvial islands investigation from site 1 to site 3 indicates that with the alluvial islands evolution: 1) The size of units with coarse surfaces rock fragment in the alluvial islands decreases and the size of units with fine surface rock fragment increases, 2) the size of alluvial islands increases, and 3) The fine layer thickness beneath the surface rock fragment increases. The high frequency of the mountain streams at the beginning of the pediment (site 1) lead to reduced size and evolution degree of the alluvial island there. The surface dynamic by the mountain stream reduce due to decreased frequency of mountain stream with distance from the mountain. By reducing the alluvial islands dynamic, the alluvial islands with small size join together, resulting in bigger alluvial islands with more pavement evolution degree (Sites 2 and 3). With further distance from the mountain (Site 4), there was not a significant change in size of alluvial island and pavement evolution degrees relative to site 3, although there were some alluvial islands with the highest pavement evolution degree (Fine layer thickness) in site 3. Lack of the pavement with high fine layer thickne in site 4 is observed due to high pediment streams disturbance and low stability of alluvial islands in downer parts of pediment. This study elucidated that the alluvial surface with high soil and desert pavement evolution degrees evolve where the surface dynamic and soil erosion is not significant. Furthermore, the result obtained from this study showed that surface rock fragment granulation in desert pavement i in powerful connection with granulation of parent alluvium properties. Therefore, current research supports the latest theory of desert pavement evolution (Accretionary Mantle Model). Keywords : Desert pavement distribution, Reg soil, Stream flow distribution, Island