Negative pressure type insect sampler and working method thereof

The present invention discloses a negative pressure type insect sampler and a working method thereof. The negative pressure type insect sampler comprises a negative pressure device; the negative pressure device and a handle are connected; the inside of the handle is provided with a rechargeable battery, a turbo fan and a cyclone accelerator; the negative pressure device comprises an air inlet assembly; the air inlet assembly and an air guide cylinder are connected; the other end of the air guide cylinder is detachably connected with an insect storage device. The negative pressure type insect sampler is designed based on today's most advanced fanless fans, and strong and soft in wind power, avoids insect scales and limbs being destroyed, and maintains intact appearance of the insect; a folding door is arranged in the insect storage device and can be opened and closed; the end of the insect storage device is a closed net, and is breathable and can effectively prevent insects from escaping; a carrier is arranged