The invention discloses a double-touch-face surface acoustic wave touch screen, which comprises a substrate, a transmitting stripe array, a receiving stripe array, a receiving transducer and a transmitting transducer. The substrate surface includes a first touch face, a second touch face and a transmission face; the transmitting stripe array, the receiving stripe array, the receiving transducer and the transmitting transducer are all arranged on the same touch face; the first and second touch faces are arranged opposite to each other; and the transmission face is connected with the first and second touch faces respectively. The invention involves two touch faces for normal touch, one touch face is provided with an assembly, the other touch face is provided with no functional part, no complex front frame assembly is required to be designed for shielding stripe arrays, transducers and the like, and the touch face without any functional part can directly serve as the front panel of a touch display product, so as to realize acoustic wave touch screen frame-free design.