Abstract: The determination and statistical analysis of contents of soil organic matter, total nitrogen, total phosphorus, total potassium, and pH value in the riparian zone of lower reaches of the Bortaqla River in Xinjiang were carried out. The results were as follows: ① The study area was characterized by that there was a strong variation of soil organic matter content in topsoil and soil layer of 80 cm in depth, but a moderate one in soil layers of 20 cm, 40 cm and 60 cm; ② Organic matter content in the study area varied in a big range from 0.03% to 4.19%, it was decreased from topsoil to deep soil layer; vertically, there was a weak positive or negative correlation of soil organic matter content between soil layer of 60 cm and other soil layers of 0-10 cm, 20 cm, 40 cm and 80 cm in depth, and the correlation of soil organic matter content among soil layers of topsoil, 80 cm, 20 cm and 40 cm in depth was extremely significant; ③ There was a negative correlation of soil organic matter content with pH value and available K, a positive one with available P, and an extremely significant positive one with total nitrogen ([WTBX]R[WTBZ]=0.934); ④ The grading of soil nutrient content revealed that the average contents of soil organic matter and available P were 0.44% and 1.99 mg•kg-1 only, the average contents of the total nitrogen and available K were 0.07% and 39.78 mg•kg-1 only, respectively, and the average pH value was 7.47.