[Objective]The aim was to compare control effects of trapping lamps with different wavelengths on soybean pests.[Method] Three kinds of lamps with different wavelengths were used to conduct pest control test in soybean fields.[Result]The trapping effects of three kinds of lamps with different wavelengths on soybean pests were significantly different.Among them,the trapping effect of No.2 light with wavelength of 400-460 nm was significantly better than the other two lamps;No.1 light with wavelength of 330-400 nm had no obvious difference in trapping effect with No.3 light with wavelength of 450-510 nm.[Conclusion]The research result provided theoretical basis for popularized application of trapping lamp in production. [Objective] The aim was to compare control effects of trapping lamps with different wavelengths on soybean pests. [Method] Three kinds of lamps with different wavelengths were used to conduct pest control test in soybean fields. [Result] The trapping effects of three kinds of lamps with different wavelengths on soybean pests were significantly different. Among them, the trapping effect of No. 2 light with a wavelength of 400-460 nm was significantly better than the other two lamps; No.1 light with a wavelength of 330-400 nm had no obvious difference in trapping effect with No. 3 light with wavelength of 450-510 nm. [Conclusion] The research result provides theoretical basis for popularized application of trapping lamp in production.