Researches on the weathering rate and products of primary silicate minerals are of great importance in the explanation of soil-forming process, cycling process of nutrient elements and global climate change. This paper has summed up the weathering of primary silicates through three different ways, i.e., natural, artificial and biochemical weathering processes, and dealt with the products formed. Biological weathering and biological mineralization as well as their significance are emphatically discussed. Field observations and laboratory experiments indicate that microbes can accelerate the weathering reactions of aluminosilicate minerals. Moreover, microbial cell surfaces and extracellular polymers serve as templates for the nucleation and precipitation of secondary mineral phases.