Ten mineral-weathering Burkholderia strains were obtained from the surface of potassic trachyte, root tissue interior, rhizosphere and bulk soils of Deyeuxia arundinacea. TheBurkholderia strains belonged to six species based on 16S rDNA sequence analysis. In addition, the dissolution of feldspar and biotite by the strains and their biological characteristics were evaluated. The results showed that the Burkholderia strains isolated from different environments had different abilities to weather silicate minerals. The concentrations of Si, K and Ca were increased by 23.7%–119%, 12.6%–40.3% and 18.7%–57.9% released from feldspar and 86.4%–876%, 5.6–14.6 folds and 70%–147% released from biotite in the presence of the Burkholderia strains respectively compared with the controls. Among the strains, strain g6 had the best ability to release Si, K, and Ca from feldspar, strain G31 had the best ability to release K and Ca from biotite, while strain R22 had the best ability to release Si from biotite. pH in the culture medium inoculated with the Burkholderia strains ranged from 3.05–4.67 and 7.03–7.43 in the presence of feldspar and biotite, respectively. Furthermore, the Burkholderia strains had the different abilities to produce siderophores in culture medium. The Burkholderia strains also had the characteristics of acid or alkali and salt tolerances and temperature resistance.