The invention discloses double-
trapping pest-killing apparatus in farmland and a working method of the apparatus. The apparatus comprises a
microprocessor device, an attracting device, a capturing device, an automatic cleaning device, a sensor device, a voice reminding device and a power supply device. According to the apparatus disclosed by the invention, the overall apparatus has a simple structure and is convenient to install, instructions are issued by the
microprocessor device, and the apparatus has high-efficiency operation, can effectively attract pests in the farmland, reduce a probability of
disease transmission caused by the pests, and reduce a use amount of pesticides; secondly, the selectivity and effectiveness are improved by using ultrasonic
waves and an attracting agent, theautomatic cleaning device is installed in the capturing device, so that the apparatus can be automatically cleaned and kill insects, is safe and
environmentally friendly, and does not
breed bacteria;in addition, the voice broadcast device is installed on the capturing device, and when people are close to the capturing device, the voice broadcast device reminds the people that the front has a high-
voltage risk; a physical and
chemical combination manner is used to trap and kill the pests, so that the working efficiency of the pest
trapping and killing apparatus is improved; and a solar energysupply manner is adopted, so that
energy consumption is saved.