Lentil (Lens culinaris) is an important legume crop in West and South Asia and North Africa. In our experiment, lentil seeds were primed with different chitosan concentrations 0, 1, 3 and 6 g/l, then five levels of salinity including control, 50, 100, 200 and 300 mM NaCl were added to the primed lentil seeds. Different variables have been taken including germination percentage, hypocotyl length, radical length, hypocotyl dry weight and radical dry weight. Our results indicated that there were significant differences in germination percentage, hypocotyl length, radical length, hypocotyl dry weight and radical dry weight among chitosan treatments irrespective to salinity level. The highest germination percentage, hypocotyl length, radical length, hypocotyl dry weight and radical dry weight were recorded when lentil seed was primed with 3 g/l chitosan. On the other hand, salinity level caused a marked reduction in lentil hypocotyl and radical dry weight at all concentrations when compared with the water control. On the other hand, our results indicated that salt tolerance of lentil plant could be improved by priming their seed with chitosan.