Abstract: Seed germination experiment for 5 different source was conducted with 5 concentrations of NaCl and salt soil to estimate whether NaCl has the same effect with salt soil, and the ability difference in different source for Haloxylon ammodendron ,the results showed that NaCl and salt soil all had influence for germinative capacity? of every source, and the influence degree gradually enhanced with increasing concentration, and the influence degree about germination percentage was lower than other index; The levels of every germination index were significant difference in different concentration treatment of NaCl and salt soil; when the concentration of NaCl was 3%, the germinative capacity from strong to weak was Inner Mongolia Alashan left banner, Xinjiang botanical garden, Inner Mongolia Dengkou county Wulanbuhe desert area, Gansu Minqin desert botanical garden, Xinjiang botanical garden’s Haloxylon persicum；when the concentration of salt soil was 4.45%, the seed germination percentage only Inner Mongolia Alashan left banner had 5%, other source seed almost all lost germinative capacity?，when the concentration of salt soil was 2.97%, Gansu Minqin desert botanical garden seed had the higher germinative capacity ,and Xinjiang botanical garden with the lowest germinative capacity, the germinative capacity? of other source remained unknown in this experiment.