The technological parameters for the optimization of a diet for breeding predatory Соссinellidae are offered. An optimized diet contains: soy flour, sucrose, milk powder, palm kernel oil, Wesson salt, dry beer yeast, tocopherol, vitamin C, agar-agar, vitamin B1, vitamin B6, vitamin B12, metaben, inositol, egg yolks, cryopreserved eggs, larvae and imago of insect phytophages in the ratio 1: 1, and nano aqua citrate microelements. The components included in the diet at optimal concentrations act as biologically and physiologically active nutrients. The proposed nutrient diet at a reasonably high level ensures reproductive potential growth, the emergence of the imago, improving search capacity and increasing the appetite of Соссinellidae in the post-embryonal period. As a result of modification of qualitative and quantitative indices of the nutrient diet, there are positive changes in the biology of predatory Соссinellidae, which improve their competitive ability in biocenoses.