To address the problem of vortex metering in wet gas,tlle overreading correction and wet gas flow measurement method are proposed, which is based on acceleration detection. The high-frequency response three-axis acceleration probe is designed, and the sensing element,probe size and its package are optimized.The calibration results in dry gas show that the metering accuracy is ±1.0%and the linearity is 1.06% in the Reynolds number range of 4.43×10＋～1.81×10³.Then，the tests are implemented on various wet gas conditions(carrier gas pressure and flowrate,liquid flowrate),and the output frequency and acceleration amplitude are acquired. The models of meter overreading,and the acceleration amplitude areestablished with the gas and liquid Weber numbers, respectively. Finally, the wet gas flow measurement model is formulated by the simultaneous equations, and solved by using the Newton iteration algorithm. The test results show that the gas prediction error is within ±1.0% with uncertainty of 0.46%,and full-scale prediction error for liquid flow within ±15% with uncertainty of 10.04%. Comparedwith the error up to 8% by the traditional method,the accuracy of wet gas metering is largely improved. Boththe gas and liquid flows can be tested online.