Using the main absorption peak of methane molecule at the wavelength of 3.3 μm, an infrared methane sensor based on non-dispersed infrared spectroscopy was developed. The optical part of the sensor consists of a measuring LED with a peak wavelength of 3.3 μm, a reference LED with a peak wavelength of 2.7 μm, a photodiode with a cutoff wavelength of 3.6 μm and a spherical emitting surface. The circuit part mainly includes LED driving circuit, photosensitive signal processing circuit, temperature measuring circuit and microprocessor. The short pulse power supply control logic mode is adopted to reduce the power on time of the infrared light source, and the power consumption of the optical measuring device is reduced to 16 mW. The influence of temperature change on the measurement results of methane was studied experimentally, through data analysis and linear fitting, the temperature compensation algorithm formula was obtained. The experimental results of the sensor with compensation and detection system platform show that the average power consumption of the sensor is 23.56 mW, the influence of temperature change in the temperature range of -20~50℃ on the measured value is not more than 3% of the true value, humidity influence detection value is less than 4%, the response time is less than 25 s, the working stability time is more than 60 days, and the performance indexes meet or are better than the relevant requirements of AQ6211-2008 coal mine non-dispersive infrared methane transducer. Compared with the methane sensor based on the principle of thermal radiation infrared light source or laser detection, the power consumption of the infrared methane sensor based on double narrow-band LED is reduced by more than 70%, which can meet the technical requirements of low power consumption in portable and wireless applications.