Early successional stage of a plantation, which can be dominated by grasses and herbaceous plant species, can provide a habitat for various species of wild bees, which are essential providers of pollination service for both crops and wild flowering plants. We sampled bees from early successional plantation patches of different sizes. We then applied a hierarchical community model to infer species richness/abundance–area relationships. The results showed that estimates of population densities of individual species were unchanged with respect to area, suggesting that smaller patches can have the same value per area as larger patches. Estimated species richness increased rapidly for the small range of patch sizes examined. Total abundance was found to linearly increase with area. The inclusion of random site effects into the model resulted in significant density variations among patches. Therefore, patch area was not the only determining factor of species abundance. These suggest that small patches of early successional forest contribute to conserve and restore wild bees.