The invention relates to lactobacillus plantarum grx15, which can be used for producing acid and has a high acid-resisting capability, and application of the lactobacillus plantarum grx15. The lactobacillus plantarum grx15 provided by the invention is a probiotics strain separated from Sichuan pickled vegetables and the preservation number is CGMCC (China General Microbiological Culture Collection Center) NO.7.199. The strain has stable properties, can grow and reproduce rapidly, has a high acid generation capability and has a high adaption capability on different fermentation environments and a high degradation capability on nitrite; the lactobacillus plantarum grx15 can be used for effectively inhibiting putrefying bacteria and pathogenic bacteria, does not generate biogenic amine and is applied to fermentation of fruits and vegetables; rapidness, safety and good flavor of pure fermented products can be ensured, and the products are easily accepted by consumers.