In a front air-flow streamlining structure of an automotive vehicle comprising a cover front portion of an under cover of a vehicle front portion and an air dam provided at a front bumper, a deflector is provided between the air dam and a front wheel house to be spaced rearward apart from the air dam, to project downward, and to extend in a vehicle width direction, an outward end portion, in the vehicle width direction, of the air dam is provided substantially continuously to the deflector, a pocket portion enclosed by the cover front portion, the air dam, and the deflector is provided such that an inward side, in the vehicle width direction, thereof opens, and a traveling-air intake portion which opens so as to take in traveling air toward the pocket portion is provided at the air dam.