Abstract: Ten restorer lines and three CMS lines were used to develop 30 hybrid crosses by NCII incomplete diallel cross.Combining ability and heritability of 9 main agronomic traits were used by variance analysis, combining ability and heritability, in order to provide reference for processing pepper breeding.The results showed that there were significant differences among the most restorer lines of 9 traits.General combination ability（GCA） analysis can be obtained PC5-1 and PC008 had the potential to cultivate large fruit species, PC272-35 had the potential to cultivate high-yield varieties.Specific combining ability（SCA） analysis could be obtained PC34193A×PC272-35,PC002A×PC495-10-13,PC002A×PC5-1 had the advantage of high yield, PC34193A×PC5-1 had the advantage of big fruit.The narrow sense heritability of first flower node, fruit transverse diameter, crown diameter, fruit longitudinal diameter was higher.The traits could be selected to be effective in low generations.The narrow sense heritability of fruit weight, fruit number per plant, pulp thick, yield per plant was lower.These traits were influenced by additive effects and environment.