Regarding to damaging effects of chemical pesticides and importance of organic products, it is necessary for biosafety to pay attention to the biological control of pests. Lacewings Chrysoperla carnea (Stephen, 1836) (Chrysopidae: Neuroptera) have special importance in pest control in the larval stages and they are considered to be an effective pest predator due to their voracity and polyphagia. Larva of lacewings hunts aphids, whiteflies, leafhoppers, thrips, acari, egg and small larva of Lepidoptera. Lacewings are belonging to the predators that can be reproduced massively with low facilities and few costs and can be used in pest biological control in field crops, gardens, forest and greenhouse. In this paper the breeding techniques of lacewings with two modern and traditional ways are discussed.