The purpose of the research is to identify promising genotypes of sweet pepper source material based on the main economically valuable traits for further use in heterosis selection. Methods: Field, laboratory, measurement-weight, statistical. Results: The study highlighted that the best samples of source material for breeding sweet pepper for earliness were the genotypes: Iga, L. 183/331, Polet, Rewia, which reach technical maturity in 99–103 days. The most large-fruited samples compared to the standard variety Snihur (12; 6 cm) were: Robertina (13; 7 cm), Veronika (15; 7 cm), Ania (19; 7 cm), Herakl (16; 7 cm), Lai lak bell (13; 7 cm), Fatima (16; 7 cm), Horticolas (17; 9 cm), Enei (13; 8 cm). It was found that the highest number of fruits per plant was in samples: Druzhok (11 pcs.); L. 183/331 (12 pcs.); L. 184/332 (16 pcs.); Kurtovskakapia (11 pcs.); Oda (11 pcs.); Tsyhanskyi baron (12 pcs.); King kong (11 pcs.); Chornyi kin (11 pcs.). The samples highlighted for "average commercial fruit weight" were: Ania (197 g); Herakl (174 g); Horticolas (246 g); Bel hoi (189 g); Enei (177 g); Tonenoelloy (186 g). The highest fruit productivity of sweet pepper was observed in the genotypes: Aivengo (1210 g/plant); Alexia (1205 g/plant); Druzhok (1326 g/plant); Ania (1482 g/plant); Anastasiia (1320 g/plant); Iga (1246 g/plant); Herakl (1436 g/plant); Horticolas (1331 g/plant); King kong (1256 g/plant). Conclusions: Thus, the conducted breeding research allowed identifying the main genotypes that combine several important quantitative traits – these are L. 183/331, L 184/332, Ania, Herakl, Horticolas, King kong.