Abstract: The present invention relates to a deodorizing strain, a deodorizing microbial agent, and use of the deodorizing strain and the deodorizing microbial agent. The deodorizing strain is selected from Providencia vermicola CM1, Pseudochrobactrum asaccharolyticum CM5, and Providencia sp. CM18 and exhibits a prominent deodorizing effect. The deodorizing microbial agent including the three deodorizing strains can improve a sulfur removal rate to nearly 80% while maintaining a high ammonia removal rate, which solves the problem that there are low sulfur removal rates in previous studies. Moreover, the deodorizing microbial agent can be easily applied with a low cost, which effectively addresses the issue that the traditional deodorizing microbial agent exhibits inadequate efficacy and slow response when used in the traditional stacking and composting processes for livestock and poultry manure and household waste.