An analysis was completed in the field to consider the impact of potassium (K) and sulfur (S) on potato for ideal yield, quality, and supplement use effectiveness. Medicines included four degrees of potassium (0, 100, 200 and 300 kg K ha^-1) and five degrees of sulfur (0, 50, 100, 150 and 200 kg S ha^-1) in Split plot configuration having three replications in Kanipanka investigate station, Sulaimani Governorate, Iraqi Kurdistan district under inundated condition. The potassium and sulfur collaboration effectsly affected vegetative development. Leaf territory, No. of stem and secured territory per plant indicated a critical effect of potassium and sulfur application. There was noteworthy negative communication among potassium and sulfur. The all out tuber yield expanded on a normal by 17.5 and 37.63 percent at 200 kg K ha^-1 and 300 kg K ha^-1, individually, when contrasted with no potassium application. Sulfur application significantly affected all out tuber yield, appropriate yield for showcasing and non-reasonable yield for promoting, non-reasonable yield for advertising to add up to yield, tuber number and tuber weight. The all out tuber yield and appropriate yield for advertising are expanded with expanding sulfur application. Concerning the information of compound substance tuber of potato demonstrated that the blend of potassium and sulfur, it saw that most noteworthy percent of K, P, N, Ca and protein substance were 1.60, 0.44, 1.47, 2.84 and 9.19 % enrolled by 300 kg K ha^-1 × 0 kg S ha^-1, 0 kg K ha^-1 × 100 kg S ha^-1, 200 kg K ha^-1 ×100 kg S ha^-1, 300 kg K ha^-1 ×100 kg S ha^-1 and 200 kg K ha^-1 × 200 kg S ha^-1, individually.