The present invention relates to cancer tissue targeting bacteria and, more specifically, to solid cancer tissue targeting bacteria and a use thereof. A composition for treating solid cancer comprises a Salmonella strain genetically engineered to represent a peptide, on the surface thereof, comprising a bacterial-derived RGD motif operably linked to a promoter, wherein integrin is overexpressed in the solid cancer.본 발명은 암조직 타겟팅 박테리아에 관한 것으로서, 더 상세하게는 고형암 조직 타겟팅 박테리아 및 그의 용도에 관한 것이다.