An experiment was conducted at greenhouse, Faculty of Environmental Agricultural Sciences, Arish University, North Sinai Governorate, Egypt, during two consecutive winter seasons (2016/2017 & 2017/2018) to investigate the effect of four levels of salinity (control 60, 80, 120, 160 Mm Sodium Chloride) on five genotypes of quinoa plant (M-28, Q-37, S-10, Regeolone-3, Line-6). Complete randomized design (CRD) was used in three replicates in this experimental work. Petri dishes of three replicate were used to determine the proportion and rate of quinoa germination ability. The results of the experiment indicated that germination rate and germination percentage of quinoa genotypes were significantly affected by salinity levels. The highest germination rate and percentage were 77.27, 93.76% at 2016/2017 and 92.18, 93.76% at 2017/2018 which obtained by M-28 genotype under control treatment (60 Mm) at both seasons. However, the lowest germination rate and percentage were 40.35, 34.73% at 2016/2017 and 55.27, 35.04% at 2017/2018 which achieved by Line-6 genotype under 160 Mm treatment at the both seasons. The all studied characters were significantly reduced by increasing the levels of salinity. The characters of grain weight/plant, harvest index and 1000 seeds weight were reduced significantly and gradually by increasing salinity levels from control treatment to 160 Mm treatment.