The invention provides an insect collecting and capturing device and belongs to the technical field of insect collecting devices. The insect collecting and capturing device comprises a screening bottle, an insect capturing cover, an air draft device and an insect storing bottle. The screening bottle is provided with three outlets. The three outlets are communicated with a first insect attracting pipe, a second insect attracting pipe and a guide-out pipe. The first insect attracting pipe is connected with the insect capturing cover in a matched mode. The second insect attracting pipe is connected with the air draft device in a matched mode. The guide-out pipe is connected with the insect storing bottle in a matched mode. The insect collecting and capturing device is convenient to use, and capable of improving insect capturing efficiency, reduces harm to insect bodies, is capable of classifying and grouping insects initially, and provides convenience for collecting the insects in the field. According to the collecting and capturing device, an insect attracting lamp and a smell attracting and collecting bag are ingeniously combined and connected with the insect capturing cover and the air draft device, injurious insects can be captured effectively, when the device is used in a greenhouse, less pesticide can be used, pesticide residues can be reduced, and therefore fruits and vegetables in the greenhouse are safe food.