The present disclosure discloses Lactobacillus gasseri capable of alleviating and treating hyperuricemia, which belongs to the technical field of microorganisms. The L. gasseri CCFM1133 of the present disclosure can reduce serum uric acid levels and the activity of serum and liver xanthine oxidase (XOD) of mice with hyperuricemia, and reduce the occurrence of hyperuricemia and gout; regulate glucose and serum triglyceride (TG) levels of patients with hyperuricemia, increase the activity of liver catalase (CAT) and glutathione peroxidase (GSH-Px); increase the expression of ileum ABCG2, promote the excretion of intestinal uric acid; and increase intestinal short-chain fatty acid levels to promote health. The L. gasseri CCFM1133 of the present disclosure can be used for preparing food, functional food or medicines, and has a wide application prospect.