The increasing population of the world led to a growing need to provide food for humans and livestock. So, the potential use of saline soils in agriculture becomes obvious. Salicornia is from the Chenopodiaceae family and is a good candidate for introduction to saline and semi-saline soils. This study aimed to investigate the effect of different salinity concentrations on germination parameters of two species of Salicornia. A factorial experiment was conducted in a completely randomized design with three replications in the environmental stress laboratory of Sari Agricultural Sciences and Natural Resources University, Iran. Experimental treatments included eight salinity levels (0, 50, 100, 200, 300, 400, 500, and 700 mM NaCl) and two species of Salicornia (S. persica and S. perspolitana). After disinfecting the seeds and applying the treatments, seed germination was counted for 10 days and finally, the parameters of coefficient of germination rate, average daily germination, germination index, and germination uniformity were calculated. The results showed that with increasing salinity concentration to the level of 144.9 mM, the germination index increased, while with a further increase in salinity from this level, the germination index showed a decreasing trend. The germination rate in S. persica was significantly higher than S. Persepolitana, about 22%. Also, in S. Persepolitana, daily germination decreased linearly with increasing average salinity, while in S. Persica species, this parameter increased from zero to 50 mM salinity level. To sum up, the responses of germination indices in S. persica were better than S. Persepolitana at an equal salinity and probably S. persica tolerates higher salinity at the germination stage.