Background: Studies on the rhizosphere microbiome of various plants proved that rhizosphere microbiota carry out various vital functions, and can regulate the growth and improve the yield of plants. However, rhizosphere microbiome of commercial blueberry was only reported by a few study and remains elusive. Comparison and interpretation of the characteristics of rhizosphere microbiome of blueberry are remarkably important to maintain its health. Methods: Hence, we profiled the taxonomical, functional, and phenotypic compositions of rhizosphere microbial communities of 15 rhizosphere soil samples collected from three different blueberry varieties and five bulk soil samples, and compared our results with previous study focused on the rhizosphere microbiome of blueberry varieties. Results: Our results demonstrated significant differences in both alpha diversity and beta diversity of rhizosphere microbial communities of different blueberry varieties and bulk soil. The distribution patterns of taxonomical, functional, and phenotypic compositions of rhizosphere microbiome differ across the blueberry varieties. The rhizosphere microbial communities of three different blueberry varieties could be distinctly separated and 28 discriminative biomarkers were selected to distinguish these three blueberry varieties. Core rhizosphere microbiota for blueberry was identified, and it contained 201 OTUs, which were mainly affiliated with Proteobacteria, Actinobacteria, and Acidobacteria. Moreover, the interactions between OTUs of blueberry rhizosphere microbial communities were explored by a co-occurrence network of OTUs from an ecological perspective. Conclusions: This pilot study explored the characteristics of blueberry’s rhizosphere microbial community, such as the beneficial microorganisms and core microbiome, and provided an integrative perspective on blueberry’s rhizosphere microbiome, which beneficial to blueberry health and production.