Since soil Bradford reactive soil protein (BRSP), a soil glycoprotein, was discovered in 1996, its function and role in soil have attracted extensive attention over the world. A brief introduction was presented to the forms and characteristics of BRSP, with emphasis on illustrating the functions of BRSP in stabilizing soil structure, promoting soil materials cycle and sequestering soil potential toxic elements. And factors affecting concentration of soil BRSP were analyzed. Prospects of soil BRSP were discussed as well.