:A new design of infrared focal plane array skimming circuit is proposed.The new skimming circuit includes pixel module and non-uniformity correction module.The circuit can reduce the influence of threshold voltage on the traditional skimming circuit and compensate the non-uniformity introduced by the detector manufacturing process.The pixel module is used to adjust the non-uniformity of the circuit itself by controlling the voltage values in the active pixel circuit and the blind pixel circuit,while the non-uniformity correction circuit is used to compensate for the non-uniformity of pixel resistance introduced by the detector manufacturing process.The circuit is applied to an uncooled infrared detector with an array of 640×480,and is designed and simulated by TSMC 0.18μm process.The simulation results show that the pixel module can make the active pixel circuit and the blind pixel circuit consistent.The non-uniformity of the active pixel resistance is less than 3 %,the maximum integral current offset is 200nA,and the compensation current of the non-uniformity correction module is greater than 200nA,which meets the design requirements,so that the output current of the skimming module becomes larger,the integral voltage becomes larger,and the display effect becomes brighter.