A methane sensor probe based on piezoelectric ceramic resonance is designed in this paper.Two piezoelectric resonators have been designed with the help of FEA software. By using 5A zeolite and acticarbon to modify the resonance body, four detectors have been fabricated which use two resonators and two sorbents. In order to verify effect of four detectors above, at volume fraction range of 0 to 7.6%, impedance spectrums have been acquired and analyzed use testing system building by ourselves. Results show that the detector including disk shape resonator and 5A zeolite has excellent sensitivity, the offset of resonant frequency at lower explosive limit can reach to 162 Hz; the detector including ring shape resonator and acticarbon has outstanding linearity.