The realization of wearable electronic devices that operate under mechanical strain is essential for the next generation of smart electronic application. Moreover, the transmittance is one of the key factors for realization of wearable electronic device in our life. The development of input device technology such as pressure sensors is crucial for the future skin applicable wearable electronic devices. Here, We fabricated transparent and flexible capacitive pressure sensors with composite of Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([EMI][TFSA]). Also, this ion-gel films are incorporated with graphene electrode for flexible and transparent sensors. This capacitive sensors have superior pressure-sensing performance, with a broad sensing range from a few pascals up to 20 kPa, with fast response times of < 30 ms and a low operating voltage of 1 V. The polymer-ionic liquid composite films have sensitivity more than 4 kPa^-1 in the long-range pressure regime of 0-20kPa. Our highly reliable and sensitive, low voltage operation and broad pressure range sensor was suitable for the efficient detection of a various pressure sources arising from human life such as sound, pulse and finger motions.