The invention relates to the field of microorganisms, in particular to a recombinant strain and application thereof. Experimental results show that before modification, wild corynebacterium glutanmicum ATCC 13869 almost generates no glutamic acid, and the yield of strain MHZ-0112-1 glutamic acid is 4.7 g/L; the yield of MHZ-0112-2 glutamic acid is 18.5 g/L; the yield of strain MHZ-0112-4 glutamic acid and the yield of MHZ-0112-5 glutamic acid are 23.4 g/L and 26.4 g/L respectively. When a strong promoter Psod is independently utilized for expressing a gdh gene, the yield of glutamic acid is increased about 1.8 times; when a promoter Ptuf is independently utilized for expressing a gltA gene, the enzyme activity of CS is improved 4 times, and the yield of glutamic acid is increased to 30.8 g/L; after the two genes are expressed at the same time, the yield of glutamic acid continues to be increased to 35.5 g/L, and the conversion rate reaches about 59%.