A portable sound source searching sensor comprising: a front body (10) in which acoustic sensors of MEMS microphones (20) are arranged to face forward; MEMS microphones (20) of which acoustic sensors are exposed to the front body (10) in a fixed state to the substrate (30); a substrate (30) on which the microphones (20) are mounted; an image photographing unit (40) of which a photographing lens (41) is exposed through a lens hole of the front body (10); and a rear body (50) for surrounding a rear side of the substrate (30) and a rear side of the image photographing unit in a state that the substrate (30) is positioned at a rear side of the front body (10).