The effects of AMF (Glomus mosseae) on growth and salt tolerance of pot wild jujube seedlings (Zizyphus spinosus Hu) at different levels of NaCl added into soil (0, 1.5, 3.0, 4.5 g kg^-1 of dry weight soil) were studied.The results showed that the height, fresh weight, dry matter weight of roots, leaves and shoots of AMF inoculated and uninoculated plants decreased while the Na concentrat ions of roots, leaves, shoots and whole plant increased with the increasing doses of NaCl added into the soil.The height, fresh weight, dry matter weight in different parts of plant and the leaf chlorophyll concentrations were significantly higher for AMF inoculated plants than for uninoculated plants grown under the same levels of NaCl.The Na concentrations of shoot and leaf were lower while the Na concentrat ions of root and the Na content of whole plant were significantly higher for inoculated plants than for uninoculated plants.The growth and leaf chlorophyll concentrations were higher for AMF inoculated plants grown under highest leve of NaCl (4.5 g kg^-1) than for uninoculated plant grown under no NaCl added into the soil.No significant differences in growth and root colonization were found between plants with salt treatment just after sowing and plants with salt treatment 40 days after sowing.The gross dry weight of AMF plants with salt treatment just after sowing increased 164%, 149%, 48%, 35%, re-spectively, at the 0, 1.5, 3.0, 4.5 g kg^-1 NaCl of the dry weight soil, compared with that of uninoculated plants, and that with salt treatment 40 days after sowing increased 194%, 127%, 72%, 46%, respectively.The results indicated that wild jujube seedlings were salt tolerant plant, the growth of the plant heavily relied on AM, and the AMF inoculated plants had greater tolerance to salt stress than uninoculated plants.