A distance measuring sensor assembly and an electronic device having the same, the sensor assembly including: a housing; a first lens provided at an upper part of the housing; a sensor module provided inside the housing, and having a light emitting part aligned with the first lens and emitting light toward an object, and a light receiving part disposed to be adjacent to the light emitting part. A reception part is provided at the upper part of the housing and spaced apart from the first lens. The light reflected from the object enters through the reception part. A second lens is provided at a lower part of the reception part and refracts the light entering from the reception part, and an optical waveguide part coupled to the second lens is used to guide the light having transmitted from the second lens to the light receiving part.