<p>A study was conducted at the net house of Sher-e-Bangla Agricultural University in Dhaka to develop salt-tolerant and high-yielding groundnut genotypes. A half-diallel cross was performed to assess the combining ability and gene action using seven genetically diverse selected parents. The resulting 21 F₁ progenies along with their parents were evaluated for their performance in pot culture using saline soil. Observations revealed a notable range of general and specific combining ability for all the traits and indicated both additive and non-additive gene effects in the inheritance of these traits. The high SCA effects for plant height (P2×P4), branch number (P2×P5), shoot biomass (P1×P5), total biomass (P1×P5), pod number per plant, pod yield per plant (P2×P4) and kernel weight per plant (P2×P4) were obtained in crosses with high×low or low×high or low×low GCA. The characteristics cannot be fixed since they are influenced by dominant×dominant or additive×dominant gene interactions. The Vr-Wr analysis indicated an absence of a non-allelic interaction affecting the expression of pod yield per plant and kernel weight per plant. The genetic analysis revealed that several genes (between two and five groups) govern all attributes, with a predominant dominance effect. The genes with positive and negative effects are distributed asymmetrically among the parents. The traits pod yield per plant, kernel weight per plant, and pod number per plant exhibited the highest, higher, and moderate levels of narrow sense heritability, respectively. This suggests that we may successfully target for these specific traits in subsequent generations through simple progeny selection in the presence of salt.</p>