The in vivo and in vitro experiments showed that Total saponins from RT had a good anti-BC effect that can inhibit the expression of JAK2 and STAT3-related proteins and mRNA, affect the expression levels of serum inflammatory factors tumor necrosis factor-α, interleukin-6, and interleukin-10, inhibit tumor growth, proliferation, and migration, and promote tumor cell apoptosis. This evidence concerns the gene STAT3 and breast cancer.