The wireless sensor system can wirelessly power the implanted device and measure physiological information related parameters through an external receiver based on the principle of inductive coupling.Designed wireless pressure sensing system includes two modules: a wireless passive pressure sensor and a sensor external wireless readout system.A two-coil configuration LC resonant inductive coupling pressure sensor device is fabricated based on three mixing ratios of polydimethylsiloxane（PDMS）for sensor frequency-pressure characteristic test.The construction of the sensor external readout circuit is completed

which can recognize the peak of the impedance curve.Measurement results demonstrate that the device achieves a suitable measurement distance of 2 cm and the sensitivity of the sensor is about-14.5 kHz/N over a range of 0～40 N for PDMS pressure sensor of mixing ration 25︰1.