There are some sandy hills distributed along Poyang Lake, which belong to typical southern desertification. As located in subtropical climate zone, the sandy hills differed in vegetation and soil from northern deserts. During the past ten to twenty years, Pinus elliottii was introduced in sandy hills for vegetation restoration. Since carbon (C), nitrogen (N) and phosphorus (P) stoichiometry are critical indicators of biogeochemical coupling in terrestrial ecosystems, the nutrients stoichiometry has been successfully used in indicating community succession and vegetation restoration in recent years. However, our knowledge of the temporal variability of carbon, nitrogen and phosphorus stoichiometry is much less developed than its spatial pattern. Besides, it remains unknown whether there is consistent temporal pattern for various ecosystem components, such as plants and soil. In this study, leaf and soil organic carbon, total nitrogen and total phosphorus in Pinus elliottii plantation were measured along desertification gradient in a typical sandy hill close to Poyang Lake. The objectives were (1) to clarify effects of desertification intensity and stand age on leaf and soil carbon, nitrogen and phosphorus stoichiometry, as well as the role of nutrients stoichiometry in indicating vegetation restoration in sandy hills, and (2) to discuss the temporal variation pattern of leaf and soil nutrients stoichiometry during stand development. Results showed that mean concentrations of leaf carbon, nitrogen and phosphorus were (437.48±16.96) mg/g, (6.09±1.51) mg/g and (0.71±0.66) mg/g, respectively. The counterparts for top 0-10 cm soil were (3.48±0.63) mg/g, (0.117±0.032) mg/g and (0.050±0.012) mg/g, respectively. The mean ratio of C:N, C:P and N:P was 75.70, 1297.86 and 17.76 for leaf, and 32.45, 74.04 and 2.52 for soil, respectively. Leaf carbon, nitrogen and phosphorus concentrations were all lower than the means of global plants. However, the ratio of N:P was comparable to other researches. Leaf nitrogen and ratio of C:N were most sensitive to changes in desertification intensity and stand age. For 5-year and 10-year Pinus elliottii plantation distributed at low and medium desertification area, both leaf nitrogen and C:N ratio were significantly affected by stand age and interaction of stand age plus desertification intensity. By comparison, stand age and desertification intensity significantly influenced leaf nitrogen and C:N ratio for 2-year and 10-year Pinus elliottii plantation distributed at medium and high desertification area. Leaf nutrients stoichiometry differed from soil in response to changes of stand age and desertification intensity. For 5-year and 10-year Pinus elliottii plantation distributed at low and medium desertification area, stand age and interaction of stand age plus desertification intensity significantly affected soil total nitrogen. However, for 2-year and 10-year Pinus elliottii plantation distributed at medium and high desertification area, desertification intensity significantly affected soil total phosphorus, and stand age significantly affected soil organic carbon. Additionally, leaf N:P ratios were 20.63 and 15.61 for 10-year and less than10-year Pinus elliottii, respectively, which suggested growth of Pinus elliottii was firstly limited by both nitrogen and phosphorus, however, Pinus elliottii plantation would change to phosphorus limitation during stand development.