This paper proposed that Waterless printing for lenticular printing when will have moire phenomenon, Use to moiré principle of geometry method and the physical optics analysis moire reason, and with the lenticular printing commonly screen frequency and dot angle arrangement , Use many different parameters, and experimental technique find the moiré reason, experimental result discovered that the partial moire will be comes from the waterless of ink roller, select the correct RIP parameter can enables the moire to achieve the minimum, will enable the lenticular printing quality to achieve the optimization.