Abstract: Weissella confusa WSG1 with digestion-assisting capacity is provided. The bacterial strain was preserved in the China General Microbiological Culture Collection Center (CGMCC) on Jun. 11, 2021 with a preservation number of CGMCC NO. 22697 and a nucleotide sequence shown in SEQ ID NO: 1. The bacterial strain of the present invention overcomes the problem of poor treatment effect of antibiotics and other medicaments in the prior art, has good safety, can survive in the gastrointestinal environment, has good susceptibility to antibiotics, has a remarkable inhibitory effect on common diarrhea-causing pathogenic bacteria, has digestion-assisting capacity, and is orally administered without toxicity. Therefore, a new available bacterial strain for the development of probiotics for maintaining the health capability of the intestinal tracts of canine organisms is provided herein.